The short answer
The Quran strongly criticises saying what you do not do and compares people who carry scripture without acting on it to a donkey carrying books. Knowledge is meant to be lived; the Prophet ﷺ even sought refuge from knowledge that does not benefit. The answer is not to stop learning, but to act on what you learn.
Allah asks: "O you who have believed, why do you say what you do not do? Great is hatred in the sight of Allah that you say what you do not do" 1. Tafsir explains that a believer's actions should confirm his words 2.
The Quran gives a vivid image of knowledge that is carried but not lived. Those who were entrusted with the Torah and did not act on it are "like that of a donkey who carries volumes [of books]" 3. The donkey bears the weight but gains nothing from it. Allah also rebukes people who order righteousness while forgetting themselves, though they recite the Scripture: "Then will you not reason?" 4
The Prophet ﷺ described a man thrown into the Fire whom people recognise. They ask him, "Didn't you use to order us to do good deeds?" He replies that he ordered good but did not do it, and forbade evil but did it himself 5. And among his supplications the Prophet ﷺ sought refuge "from the knowledge which does not benefit" 6.
A person will also be asked about "his knowledge and what he did with it" 7. Knowledge is a trust, not a trophy.
Does this mean you should stop learning or stop advising others until you are perfect? No. The warning is against hypocrisy and neglect, not against honest people who are still struggling. The Prophet ﷺ praised the one given wisdom who "acts according to it and teaches it to others" 8: learning, acting and teaching go together.
A simple habit: every time you learn something new, pick one small action to apply that week. Knowledge grows when it is used.
It is greatly hateful to Allah that you say what you do not do.
يَٰٓأَيُّهَا ٱلَّذِينَ ءَامَنُواْ لِمَ تَقُولُونَ مَا لَا تَفۡعَلُونَ ٢ كَبُرَ مَقۡتًا عِندَ ٱللَّهِ أَن تَقُولُواْ مَا لَا تَفۡعَلُونَ ٣
2 O you who have believed, why do you say what you do not do 3 Great is hatred in the sight of Allah that you say what you do not do
It is a most detested thing to Allah that you say what you do not do. It is only appropriate for a believer to be truthful with Allah, and for his actions to confirm his statements.
Those given the Torah who did not act on it are like a donkey carrying books.
مَثَلُ ٱلَّذِينَ حُمِّلُواْ ٱلتَّوۡرَىٰةَ ثُمَّ لَمۡ يَحۡمِلُوهَا كَمَثَلِ ٱلۡحِمَارِ يَحۡمِلُ أَسۡفَارَۢاۚ بِئۡسَ مَثَلُ ٱلۡقَوۡمِ ٱلَّذِينَ كَذَّبُواْ بِـَٔايَٰتِ ٱللَّهِۚ وَٱللَّهُ لَا يَهۡدِي ٱلۡقَوۡمَ ٱلظَّٰلِمِينَ ٥
The example of those who were entrusted with the Torah and then did not take it on is like that of a donkey who carries volumes [of books]. Wretched is the example of the people who deny the signs of Allah. And Allah does not guide the wrongdoing people
Do you order righteousness and forget yourselves while reciting the Scripture?
۞أَتَأۡمُرُونَ ٱلنَّاسَ بِٱلۡبِرِّ وَتَنسَوۡنَ أَنفُسَكُمۡ وَأَنتُمۡ تَتۡلُونَ ٱلۡكِتَٰبَۚ أَفَلَا تَعۡقِلُونَ ٤٤
Do you order righteousness of the people and forget yourselves while you recite the Scripture? Then will you not reason
A man in the Fire ordered good without doing it and forbade evil while doing it.
Narrated Abu Wail:Somebody said to Usama, "Will you go to so-and-so (i.e. `Uthman) and talk to him (i.e. advise him regarding ruling the country)?" He said, "You see that I don't talk to him. Really I talk to (advise) him secretly without opening a gate (of affliction), for neither do I want to be the first to open it (i.e. rebellion), nor will I say to a man who is my ruler that he is the best of all the people after I have heard something from Allah's Apostle ." They said, What have you heard him saying? He said, "I have heard him saying, "A man will be brought on the Day of Resurrection and thrown in the (Hell) Fire, so that his intestines will come out, and he will go around like a donkey goes around a millstone. The people of (Hell) Fire will gather around him and say: O so-and-so! What is wrong with you? Didn't you use to order us to do good deeds and forbid us to do bad deeds? He will reply: Yes, I used to order you to do good deeds, but I did not do them myself, and I used to forbid you to do bad deeds, yet I used to do them myself
حَدَّثَنَا عَلِيٌّ، حَدَّثَنَا سُفْيَانُ، عَنِ الأَعْمَشِ، عَنْ أَبِي وَائِلٍ،، قَالَ قِيلَ لأُسَامَةَ لَوْ أَتَيْتَ فُلاَنًا فَكَلَّمْتَهُ. قَالَ إِنَّكُمْ لَتَرَوْنَ أَنِّي لاَ أُكَلِّمُهُ إِلاَّ أُسْمِعُكُمْ، إِنِّي أُكُلِّمُهُ فِي السِّرِّ دُونَ أَنْ أَفْتَحَ بَابًا لاَ أَكُونُ أَوَّلَ مَنْ فَتَحَهُ، وَلاَ أَقُولُ لِرَجُلٍ أَنْ كَانَ عَلَىَّ أَمِيرًا إِنَّهُ خَيْرُ النَّاسِ بَعْدَ شَىْءٍ سَمِعْتُهُ مِنْ رَسُولِ اللَّهِ صلى الله عليه وسلم. قَالُوا وَمَا سَمِعْتَهُ يَقُولُ قَالَ سَمِعْتُهُ يَقُولُ " يُجَاءُ بِالرَّجُلِ يَوْمَ الْقِيَامَةِ فَيُلْقَى فِي النَّارِ، فَتَنْدَلِقُ أَقْتَابُهُ فِي النَّارِ، فَيَدُورُ كَمَا يَدُورُ الْحِمَارُ بِرَحَاهُ، فَيَجْتَمِعُ أَهْلُ النَّارِ عَلَيْهِ، فَيَقُولُونَ أَىْ فُلاَنُ، مَا شَأْنُكَ أَلَيْسَ كُنْتَ تَأْمُرُنَا بِالْمَعْرُوفِ وَتَنْهَى عَنِ الْمُنْكَرِ قَالَ كُنْتُ آمُرُكُمْ بِالْمَعْرُوفِ وَلاَ آتِيهِ، وَأَنْهَاكُمْ عَنِ الْمُنْكَرِ وَآتِيهِ ". رَوَاهُ غُنْدَرٌ عَنْ شُعْبَةَ عَنِ الأَعْمَشِ.
The Prophet ﷺ sought refuge from knowledge that does not benefit.
Zaid b. Alqam reported:I am not going to say anything but only that which Allah's Messenger (may peace be upgn him) used to say. He used to supplicate:" O Allah, I seek refuge in Thee from incapacity, from sloth, from cowardice, from miserliness, decrepitude and from torment of the grave. O Allah, grant to my soul the sense of righteousness and purify it, for Thou art the Best Purifier thereof. Thou art the Protecting Friend thereof, and Guardian thereof. O Allah, I seek refuge in Thee from the knowledge which does not benefit, from the heart that does not entertain the fear (of Allah), from the soul that does not feel contented and the supplication that is not responded
حَدَّثَنَا أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ، وَإِسْحَاقُ بْنُ إِبْرَاهِيمَ، وَمُحَمَّدُ بْنُ عَبْدِ اللَّهِ بْنِ نُمَيْرٍ، - وَاللَّفْظُ لاِبْنِ نُمَيْرٍ - قَالَ إِسْحَاقُ أَخْبَرَنَا وَقَالَ الآَخَرَانِ، حَدَّثَنَا أَبُو مُعَاوِيَةَ، عَنْ عَاصِمٍ، عَنْ عَبْدِ اللَّهِ بْنِ الْحَارِثِ، وَعَنْ أَبِي عُثْمَانَ النَّهْدِيِّ، عَنْ زَيْدِ بْنِ أَرْقَمَ، قَالَ لاَ أَقُولُ لَكُمْ إِلاَّ كَمَا كَانَ رَسُولُ اللَّهِ صلى الله عليه وسلم يَقُولُ كَانَ يَقُولُ " اللَّهُمَّ إِنِّي أَعُوذُ بِكَ مِنَ الْعَجْزِ وَالْكَسَلِ وَالْجُبْنِ وَالْبُخْلِ وَالْهَرَمِ وَعَذَابِ الْقَبْرِ اللَّهُمَّ آتِ نَفْسِي تَقْوَاهَا وَزَكِّهَا أَنْتَ خَيْرُ مَنْ زَكَّاهَا أَنْتَ وَلِيُّهَا وَمَوْلاَهَا اللَّهُمَّ إِنِّي أَعُوذُ بِكَ مِنْ عِلْمٍ لاَ يَنْفَعُ وَمِنْ قَلْبٍ لاَ يَخْشَعُ وَمِنْ نَفْسٍ لاَ تَشْبَعُ وَمِنْ دَعْوَةٍ لاَ يُسْتَجَابُ لَهَا " .
Each person will be asked about his knowledge and what he did with it.
Abu Barzah Al-Aslami narrated that the Messenger of Allah (s.a.w) said:"The feet of the slave of Allah shall not move [on the Day of Judgement] until he is asked about five things: about his life and what he did with it, about his knowledge and what he did with it, about his wealth and how he earned it and where he spent it on, about his body and for what did he wear it out." [He said:] This Hadith is Hasan Sahih. Sa'eed bin Abdullah bin Juraij (a narrator in the chain) [is from Al-Basrah], and he is the freed slave of Abu Barzah AlAslami, and Abu Barzah AlAslami's name is Nadlah bin 'Ubaid
حَدَّثَنَا عَبْدُ اللَّهِ بْنُ عَبْدِ الرَّحْمَنِ، أَخْبَرَنَا الأَسْوَدُ بْنُ عَامِرٍ، حَدَّثَنَا أَبُو بَكْرِ بْنُ عَيَّاشٍ، عَنِ الأَعْمَشِ، عَنْ سَعِيدِ بْنِ عَبْدِ اللَّهِ بْنِ جُرَيْجٍ، عَنْ أَبِي بَرْزَةَ الأَسْلَمِيِّ، قَالَ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " لاَ تَزُولُ قَدَمَا عَبْدٍ يَوْمَ الْقِيَامَةِ حَتَّى يُسْأَلَ عَنْ عُمْرِهِ فِيمَا أَفْنَاهُ وَعَنْ عِلْمِهِ فِيمَا فَعَلَ وَعَنْ مَالِهِ مِنْ أَيْنَ اكْتَسَبَهُ وَفِيمَا أَنْفَقَهُ وَعَنْ جِسْمِهِ فِيمَا أَبْلاَهُ " . قَالَ هَذَا حَدِيثٌ حَسَنٌ صَحِيحٌ . وَسَعِيدُ بْنُ عَبْدِ اللَّهِ بْنِ جُرَيْجٍ هُوَ بَصْرِيٌّ وَهُوَ مَوْلَى أَبِي بَرْزَةَ وَأَبُو بَرْزَةَ اسْمُهُ نَضْلَةُ بْنُ عُبَيْدٍ .
Praiseworthy envy of one given wisdom who acts on it and teaches it.
Narrated `Abdullah bin Mas`ud:The Prophet (ﷺ) said, "Do not wish to be like anyone except in two cases. (The first is) A person, whom Allah has given wealth and he spends it righteously; (the second is) the one whom Allah has given wisdom (the Holy Qur'an) and he acts according to it and teaches it to others." (Fath-al-Bari page 177 Vol)
حَدَّثَنَا الْحُمَيْدِيُّ، قَالَ حَدَّثَنَا سُفْيَانُ، قَالَ حَدَّثَنِي إِسْمَاعِيلُ بْنُ أَبِي خَالِدٍ، عَلَى غَيْرِ مَا حَدَّثَنَاهُ الزُّهْرِيُّ، قَالَ سَمِعْتُ قَيْسَ بْنَ أَبِي حَازِمٍ، قَالَ سَمِعْتُ عَبْدَ اللَّهِ بْنَ مَسْعُودٍ، قَالَ قَالَ النَّبِيُّ صلى الله عليه وسلم " لاَ حَسَدَ إِلاَّ فِي اثْنَتَيْنِ رَجُلٌ آتَاهُ اللَّهُ مَالاً فَسُلِّطَ عَلَى هَلَكَتِهِ فِي الْحَقِّ، وَرَجُلٌ آتَاهُ اللَّهُ الْحِكْمَةَ، فَهْوَ يَقْضِي بِهَا وَيُعَلِّمُهَا ".
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