Bulugh al-Maram 3 Funerals كتاب الجنائز 32

وَعَنْ طَلْحَةَ بْنِ عَبْدِ اَللَّهِ بْنِ عَوْفٍ قَالَ: { صَلَّيْتُ خَلَفَ ابْنِ عَبَّاسٍ عَلَى جَنَازَةٍ, فَقَرَأَ فَاتِحَةَ الكْتِابِ فَقَالَ: “لِتَعْلَمُوا أَنَّهَا سُنَّةٌ” } رَوَاهُ اَلْبُخَارِيُّ 1 . 1 – صحيح. رواه البخاري (1335).

Talhah bin ‘AbduIlah bin ‘Auf (RAA) narrated, ‘I offered a funeral prayer led by Ibn ‘Abbas. He recited al-Fatihah and said, ‘You should know that it (reciting al-Fatihah) is a Sunnah of the Prophet (صلى الله عليه وسلم).’ Related by Al-Bukhari.