1184
Musnad AhmedIt was narrated that Huzain said:
Testimony was given against or Husain al-Waleed bin "Uqbah before ‘Uthman, that he drank alcohol. "Ali spoke to ‘Uthman about him and he said: Here is your cousin, flog him. He said: Get up O Hasan (and flog him). He said: What do you have to do with this man? Let someone other than you do that. He said: Rather you felt incapable and weak. Get up, O "Abdullah bin Jafar, and flog him. ‘Ali (رضي الله عنه) started counting, and when he reached forty he said. That"s enough-or:Stop-The Messenger of Allah (ﷺ) gave forty lashes, and Abu Bakr gave forty lashes, and "Umar completed it, making it eighty. And all are Sunnah.
Reference: Musnad Ahmad 1184
Arabic/English book : Book 5, Hadith 1184
Arabic/English book : Book 5, Hadith 1184