Talha bin Abdullah narrates: I was present with Sayyiduna Abdullah bin Abbas (may Allah be pleased with them both) when he recited Surah Al-Fatihah while performing a funeral prayer. When he finished the prayer, I asked him: Did you recite Surah Al-Fatihah? He replied: Yes! O my nephew! This is Sunnah and the truth.
Hadith Referenceصحیح ابن حبان / كتاب الجنائز وما يتعلق بها مقدما أو مؤخرا / 3072
Hadith Gradingفضيلة الشيخ الإمام محمد ناصر الدين الألبانيصحيح: خ - انظر ما قبله.فضيلة الشيخ العلّامة شُعيب الأرناؤوطإسناده صحيح