I offered the funeral prayer behind Ibn `Abbas and he recited Al-Fatiha and said, "You should know that it (i.e. recitation of Al-Fatiha) is the tradition of the Prophet (ﷺ) Muhammad.
Reference: Sahih al-Bukhari 1335 In-book : Book 23, Hadith 91 USC-MSA web (English) : Vol. 2, Book 23, Hadith 419 (deprecated)
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