Khlyd bin Ja'far bin Tryf خليد بن جعفر بن طريف · The Book of Funerals

"When 'Abdullah bin Ubayy died, his son came to the Prophet and said: 'Give me your shirt so that I may shroud him in it, and (some and) offer the (funeral) prayer for him, and pray for forgiveness for him'. So he gave him his shirt then he said: 'When you have finished, inform me and I will offer the (funeral) prayer for him.' But 'Umar stopped him and said: 'Hasn't Allah forbidden you to offer the (funeral) prayer for…