Musnad Ahmad 2497

It was narrated from 'Abdullah bin ‘Abbas (عليه السلام) that a son of his died in Qudaid or ‘Usfan and he said: O Kuraib (go and) see how many people have gathered (to offer the funeral prayer) for him. So I went out and saw that some people had gathered (to offer the funeral prayer) for him. So I told him and he said: Are there forty? I said: Yes. He said: Bring him out, for I heard the Messenger of Allah (ﷺ) say: "There is no Muslim who dies, and forty men who do not associate anything with Allah stand to offer the funeral prayer for him, but Allah will accept their intercession for him.”