623
Musnad AhmedWaqid bin "Amr bin Sa"d bin Mu"adh said:
I saw a funeral among Banu Salimah so I stood up. Nafi’ bin Jubair said to me: Sit down, and I will tell you something decisive about this: Mas"ood bin al-Hakam az-Zuraqi told me that he heard ‘Ali bin Abi Talib (رضي الله عنه) in Rahbatal-Koofah saying: The Messenger of Allah (ﷺ) told us to stand up for funerals; then later on he remained seated and told us to remain seated.
Reference: Musnad Ahmad 623
Arabic/English book : Book 5, Hadith 623
Arabic/English book : Book 5, Hadith 623