Narrated Uthman ibn Affan: Whenever the Prophet ﷺ became free from burying the dead, he used to stay at him (i. e. his grave) and say: Seek forgiveness for your brother, and beg steadfastness for him, for he will be questioned now. Abu Dawud said: The full name of the narrator Buhair is Buhair bin Raisan.
Hadith Referenceسنن ابي داود / كتاب الجنائز / 3221
Hadith Gradingالألبانی:صحيح | زبیر علی زئی:إسناده حسن, مشكوة المصابيح (133)