Sunan an-Nasa'i 1443
سنن النسائي#1443Sahihحَدَّثَنَا مُحَمَّدُ بْنُ عَبْدِ الأَعْلَى، فِي حَدِيثِهِ عَنْ خَالِدِ بْنِ الْحَارِثِ، قَالَ حَدَّثَنَا شُعْبَةُ، عَنْ قَتَادَةَ، قَالَ سَمِعْتُ مُوسَى، - وَهُوَ ابْنُ سَلَمَةَ - قَالَ قُلْتُ لاِبْنِ عَبَّاسٍ كَيْفَ أُصَلِّي بِمَكَّةَ إِذَا لَمْ أُصَلِّ فِي جَمَاعَةٍ قَالَ رَكْعَتَيْنِ سُنَّةَ أَبِي الْقَاسِمِ صلى الله عليه وسلم .
It was narrated that Qatadah said:"I heard Muas- bin Salamah-say: 'I said to Ibn 'Abbas: How should I pray in Makkah if I do not pray in congregation? He said: Two rak'ahs, the sunnah of Abu Al-Qasim
Scholarly Authentication
The label above is the grade most of these scholars gave — one dissenting opinion no longer speaks for all of them. If any scholar calls a narration fabricated, that verdict is shown instead, whatever the others say. Each scholar's own wording:
In-book reference: 15:11