When (the Qur'an) is recited (in prayer), you should observe silence, and (the following words are) not found in the hadith narrated by anyone except by Abu Kamil who heard it from Abu 'Awina (and the words are): Verily Allah vouchsafed through the tongue of the Messenger of Allah ﷺ this: Allah listens to him who praises Him. Abu Ishaq (a student of Imam Muslim) said: Abu Bakr the son of Abu Nadr's sister has (critically) discussed this hadith. Imam Muslim said: Whom can you find a more authentic transmitter of hadith than Sulaiman? Abu Bakr said to him (Imam Muslim): What about the hadith narrated by Abu Huraira, i.e. the hadith that when the Qur'an is recited (in prayer) observe silence? He (Abu Bakr again) said: Then, why have you not included it (in your compilation)? He (Imam Muslim) said: I have not included in this every hadith which I deem authentic; I have recorded only such ahadith on which there is an agreement (amongst the Muhaddithin apart from their being authentic).  

عَنْ قَتَادَةَ فِي هَذَا الإِسْنَادِ بِمِثْلِهِ وَفِي حَدِيثِ جَرِيرٍ عَنْ سُلَيْمَانَ عَنْ قَتَادَةَ مِنَ الزِّيَادَةِ وَإِذَا قَرَأَ فَأَنْصِتُوا وَلَيْسَ فِي حَدِيثِ أَحَدٍ مِنْهُمْ فَإِنَّ اللَّهَ قَالَ عَلَى لِسَانِ نَبِيِّهِ ﷺ سَمِعَ اللَّهُ لِمَنْ حَمِدَهُ إِلاَّ فِي رِوَايَةِ أَبِي كَامِلٍ وَحْدَهُ عَنْ أَبِي عَوَانَةَ قَالَ أَبُو إِسْحَاقَ قَالَ أَبُو بَكْرِ ابْنُ أُخْتِ أَبِي النَّضْرِ فِي هَذَا الْحَدِيثِ فَقَالَ مُسْلِمٌ تُرِيدُ أَحْفَظَ مِنْ سُلَيْمَانَ فَقَالَ لَهُ أَبُو بَكْرٍ فَحَدِيثُ أَبِي هُرَيْرَةَ فَقَالَ هُوَ صَحِيحٌ يَعْنِي وَإِذَا قَرَأَ فَأَنْصِتُوا فَقَالَ هُوَ عِنْدِي صَحِيحٌ فَقَالَ لِمَ لَمْ تَضَعْهُ هَا هُنَا قَالَ لَيْسَ كُلُّ شَىْءٍ عِنْدِي صَحِيحٍ وَضَعْتُهُ هَا هُنَا إِنَّمَا وَضَعْتُ هَا هُنَا مَا أَجْمَعُوا عَلَيْهِ