حَدَّثَنَا عَفَّانُ حَدَّثَنَا حَمَّادٌ حَدَّثَنَا عَاصِمٌ عَنْ زِرٍّ أَنَّ رَجُلًا قَالَ لِابْنِ مَسْعُودٍ كَيْفَ تَعْرِفُ هَذَا الْحَرْفَ مَاءٌ غَيْرُ يَاسِنٍ أَمْ آسِنٍ فَقَالَ كُلَّ الْقُرْآنِ قَدْ قَرَأْتَ قَالَ إِنِّي لَأَقْرَأُ الْمُفَصَّلَ أَجْمَعَ فِي رَكْعَةٍ وَاحِدَةٍ فَقَالَ أَهَذَّ الشِّعْرِ لَا أَبَا لَكَ قَدْ عَلِمْتُ قَرَائِنَ رَسُولِ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ الَّتِي كَانَ يَقْرُنُ قَرِينَتَيْنِ قَرِينَتَيْنِ مِنْ أَوَّلِ الْمُفَصَّلِ وَكَانَ أَوَّلُ مُفَصَّلِ ابْنِ مَسْعُودٍ الرَّحْمَنُ
مسند امام احمد بن حنبل · Hadith 3910
It was narrated from Zirr that a man said to Tbn Mas'ood (RA): How do you read this phrase: main ghairi yasin or asin (in the verse, "water the taste and smell of which are not changed ( main ghairi asin)" [Muhammad 47:15])? 'Abdullah said to him: Have you read all the Qur'an except this? He said: I recite al-Mufassal in one rak'ah. 'Abdullah said: Do you recite Qur'an as you recite poetry (i.e., quickly)? I learned the pairs of soorahs that the Messenger of Allah (PBUH) used to recite together, pair by pair, from the beginning of al-Mufassal. And the beginning of al-Mufassal according to Ibn Mas'ood was (Soorat) ar-Rahman.
Sanad
حَدَّثَنَا عَفَّانُ حَدَّثَنَا حَمَّادٌ حَدَّثَنَا عَاصِمٌ عَنْ زِرٍّ