Abu 'Abd al-Rahman, how do you recite this word (alif) or (ya)? Would you read It as: min ma'in ghaira asin or au min ma'in ghaira ghaira yasin. (al-Qur'an, xlvii. 15)? 'Abdullah said: You (seem to) have memorised the whole of the Qur'an except this. He (again) said: I recite all the mufassal surahs in one rak'ah. Upon this 'Abdullah said: (You must have been reciting It) hastily like the recitation of poetry. Verily. there are people who recite the Qur'an, but it does not go down beyond their collar bones. It is (a fact with the Qur'an) that it is beneficial only when it settles in the heart and is rooted deeply in it. The best of (the acts) in prayer are bowing and prostration. I am quite aware of the occasions when the Messenger of Allah ﷺ combined together two surahs in every rak'ah. 'Abdullah then stood up and went out with 'Alqama following in his footstep. He said Ibn Numair had told him that the narration was like that:" A person belonging to Banu Bajila came to 'Abdullah," and he did not mention (the name of) Nahik b. Sinan.  

جَاءَ رَجُلٌ يُقَالُ لَهُ نَهِيكُ بْنُ سِنَانٍ إِلَى عَبْدِ اللَّهِ فَقَالَ يَا أَبَا عَبْدِ الرَّحْمَنِ كَيْفَ تَقْرَأُ هَذَا الْحَرْفَ أَلِفًا تَجِدُهُ أَمْ يَاءً مِنْ مَاءٍ غَيْرِ آسِنٍ أَوْ مِنْ مَاءٍ غَيْرِ يَاسِنٍ قَالَ فَقَالَ عَبْدُ اللَّهِ وَكُلَّ الْقُرْآنِ قَدْ أَحْصَيْتَ غَيْرَ هَذَا قَالَ إِنِّي لأَقْرَأُ الْمُفَصَّلَ فِي رَكْعَةٍ فَقَالَ عَبْدُ اللَّهِ هَذًّا كَهَذِّ الشِّعْرِ إِنَّ أَقْوَامًا يَقْرَءُونَ الْقُرْآنَ لاَ يُجَاوِزُ تَرَاقِيَهُمْ وَلَكِنْ إِذَا وَقَعَ فِي الْقَلْبِ فَرَسَخَ فِيهِ نَفَعَ إِنَّ أَفْضَلَ الصَّلاَةِ الرُّكُوعُ وَالسُّجُودُ إِنِّي لأَعْلَمُ النَّظَائِرَ الَّتِي كَانَ رَسُولُ اللَّهِ ﷺ يَقْرُنُ بَيْنَهُنَّ سُورَتَيْنِ فِي كُلِّ رَكْعَةٍ ثُمَّ قَامَ عَبْدُ اللَّهِ فَدَخَلَ عَلْقَمَةُ فِي إِثْرِهِ ثُمَّ خَرَجَ فَقَالَ قَدْ أَخْبَرَنِي بِهَا قَالَ ابْنُ نُمَيْرٍ فِي رِوَايَتِهِ جَاءَ رَجُلٌ مِنْ بَنِي بَجِيلَةَ إِلَى عَبْدِ اللَّهِ وَلَمْ يَقُلْ نَهِيكُ بْنُ سِنَانٍ  

[Machine] O Abu Abdur-Rahman, how do you read this Ayah "{from unsullied water}" [Muhammad: 15], do you read it as ya or alif? So he said, "I have counted all of the Quran except for this one." Abdullah said, "I read the detailed one in each rakah." He said, "Abdullah did this as the poets do. Indeed, from the best of prayer is the rukoo and the sujood, and the Quran will be recited by people whose provision does not exceed their ankles. But when it is recited, it penetrates the heart and benefits. I definitely know the equivalent(s) which the Messenger of Allah ﷺ used to recite in two surahs in each rakah, then he stood and entered [prostration]. Alqamah came and entered [the prostration]. We said, Ask him about the equivalents which the Messenger of Allah ﷺ used to recite in each rakah." So he entered and asked him. Then he left and said, "Twenty surahs from the beginning of the Mufassal, in the compilation of Abdullah."  

يَا أَبَا عَبْدِ الرَّحْمَنِ كَيْفَ تَقْرَأُ هَذِهِ الْآيَةَ {مِنْ مَاءٍ غَيْرِ آسِنٍ} [محمد 15] أَيَاءً تَقْرَأُهَا أَوْ أَلِفًا؟ فَقَالَ كُلُّ الْقُرْآنِ قَدْ أَحْصَيْتُ غَيْرَ هَذَا قَالَ إِنِّي لَأَقْرَأُ الْمُفَصَّلَ فِي رَكْعَةٍ فَقَالَ عَبْدُ اللهِ هَذًّا كَهَذِّ الشِّعْرِ إِنَّ مِنْ أَحْسَنِ الصَّلَاةِ الرُّكُوعَ وَالسُّجُودَ وَلَيَقْرَأَنَّ الْقُرْآنَ أَقْوَامٌ لَا يُجَاوِزُ تَرَاقِيَهُمْ وَلَكِنْ إِذَا قُرِئَ فَرَسَخَ فِي الْقَلْبِ نَفَعَ إِنِّي لَأَعْرِفُ النَّظَائِرَ الَّتِي كَانَ رَسُولُ اللهِ ﷺ يَقْرَأُ سُورَتَيْنِ فِي كُلِّ رَكْعَةٍ ثُمَّ قَامَ فَدَخَلَ فَجَاءَ عَلْقَمَةُ فَدَخَلَ فَقُلْنَا لَهُ سَلْهُ عَنِ النَّظَائِرِ الَّتِي كَانَ رَسُولُ اللهِ ﷺ يَقْرَأُ بِهَا فِي كُلِّ رَكْعَةٍ فَدَخَلَ فَسَأَلَهُ ثُمَّ خَرَجَ فَقَالَ عِشْرُونَ سُورَةً مِنْ أَوَّلِ الْمُفَصَّلِ فِي تَأْلِيفِ عَبْدِ اللهِ