Sunan an-Nasa'i 1987
سنن النسائي#1987Sahihأَخْبَرَنَا الْهَيْثَمُ بْنُ أَيُّوبَ، قَالَ حَدَّثَنَا إِبْرَاهِيمُ، - وَهُوَ ابْنُ سَعْدٍ - قَالَ حَدَّثَنَا أَبِي، عَنْ طَلْحَةَ بْنِ عَبْدِ اللَّهِ بْنِ عَوْفٍ، قَالَ صَلَّيْتُ خَلْفَ ابْنِ عَبَّاسٍ عَلَى جَنَازَةٍ فَقَرَأَ بِفَاتِحَةِ الْكِتَابِ وَسُورَةٍ وَجَهَرَ حَتَّى أَسْمَعَنَا فَلَمَّا فَرَغَ أَخَذْتُ بِيَدِهِ فَسَأَلْتُهُ فَقَالَ سُنَّةٌ وَحَقٌّ .
It was narrated that Talhah bin 'Abdullah bin 'Awf said:"I offered the funeral prayer behind Ibn 'Abbas. He recited Fatihat Al-Kitab and a Surah, which he recited loudly, such that we could hear him. When he finished I took him by the hand and asked him. He said: '(It is) Sunnah and the truth
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: 21:170