Jami` at-Tirmidhi, Hadith 602 ⓘ

Abu Wa'il said: "A man asked Abdullah bin Mas'ud about this phrase: 'Ghairi asin' or is it Yasin? So he said: 'You can recite all of the Quran besides this [phrase]?' He said: 'Yes.' He said: 'Indeed a people recite it, disbursing it like Ad-Daqqa are dispersed, without it passing their throats. Indeed I am aware of the surahs that are comparable which the Messenger of Allah would recite together.'" He said: "So we told Alqamah to ask him (what they were). He said: "Twenty surahs from the Mufassal from which the Prophet would combine, reciting every two Surah in a Rak'ah.'"

حَدَّثَنَا مَحْمُودُ بْنُ غَيْلاَنَ، حَدَّثَنَا أَبُو دَاوُدَ، قَالَ أَنْبَأَنَا شُعْبَةُ، عَنِ الأَعْمَشِ، قَالَ سَمِعْتُ أَبَا وَائِلٍ، قَالَ سَأَلَ رَجُلٌ عَبْدَ اللَّهِ عَنْ هَذَا الْحَرْفِ ‏(‏غَيرِ آسِنٍ‏)‏ أَوْ يَاسِنٍ قَالَ كُلَّ الْقُرْآنِ قَرَأْتَ غَيْرَ هَذَا الْحَرْفِ قَالَ نَعَمْ ‏.‏ قَالَ إِنَّ قَوْمًا يَقْرَءُونَهُ يَنْثُرُونَهُ نَثْرَ الدَّقَلِ لاَ يُجَاوِزُ تَرَاقِيَهُمْ إِنِّي لأَعْرِفُ السُّوَرَ النَّظَائِرَ الَّتِي كَانَ رَسُولُ اللَّهِ صلى الله عليه وسلم يَقْرِنُ بَيْنَهُنَّ ‏.‏ قَالَ فَأَمَرْنَا عَلْقَمَةَ فَسَأَلَهُ فَقَالَ عِشْرُونَ سُورَةً مِنَ الْمُفَصَّلِ كَانَ النَّبِيُّ صلى الله عليه وسلم يَقْرِنُ بَيْنَ كُلِّ سُورَتَيْنِ فِي رَكْعَةٍ ‏.‏ قَالَ أَبُو عِيسَى هَذَا حَدِيثٌ حَسَنٌ صَحِيحٌ ‏.‏