حَدَّثَنَا مُحَمَّدُ بْنُ جَعْفَرٍ وَحَجَّاجٌ قَالَا حَدَّثَنَا شُعْبَةُ عَنْ مَنْصُورٍ عَنْ أَبِي وَائِلٍ عَنْ عَبْدِ اللَّهِ عَنْ النَّبِيِّ أَنَّهُ قَالَ بِئْسَمَا لِأَحَدِكُمْ أَوْ بِئْسَمَا لِأَحَدِهِمْ أَنْ يَقُولَ نَسِيتُ آيَةَ كَيْتَ وَكَيْتَ بَلْ هُوَ نُسِّيَ وَاسْتَذْكِرُوا الْقُرْآنَ فَإِنَّهُ أَسْرَعُ تَفَصِّيًا مِنْ صُدُورِ الرِّجَالِ مِنْ النَّعَمِ بِعُقُلِهِ أَوْ مِنْ عُقُلِهِ
مسند امام احمد بن حنبل · Hadith 4176
It was narrated from 'Abdullah, from the Prophet (PBUH), that he said: "What a bad thing for one of you - or one of them - to say, I forgot such and such a verse. Rather he was caused to forget. Keep revising the Qur'an, for it is quicker to flee from the hearts of men than camels from their hobbles."
Translated by Dr. Muhammad Muhsin Khan · Reviewed by Islamic University of Madinah · Published March 2020
Sanad
حَدَّثَنَا مُحَمَّدُ بْنُ جَعْفَرٍ وَحَجَّاجٌ قَالَا حَدَّثَنَا شُعْبَةُ عَنْ مَنْصُورٍ عَنْ أَبِي وَائِلٍ عَنْ عَبْدِ اللَّهِ