Musannaf Ibn Abi Shaybah

Hazrat Huzain Abu Sasan narrates that some people from among the people of Kufa rode to Hazrat Uthman and informed him about Walid bin Uqbah drinking wine. So Hazrat Ali (may Allah be pleased with him) spoke to him about this matter. Hazrat Uthman said: Go to your cousin and you establish the hadd (punishment) upon him. So Hazrat Ali (may Allah be pleased with him) said: O Hasan! Stand up and lash him. He (Hasan) said: You are not fit for this act! Entrust it to someone other than yourself. He (Ali) said: Rather, you have become weak, feeble, and incapable. O Abdullah bin Ja'far, stand up. So he began to lash him, and Hazrat Ali (may Allah be pleased with him) was counting until they reached forty. He said: Stop, or he said: Halt. The Messenger of Allah (peace and blessings be upon him) gave forty lashes, and Hazrat Abu Bakr also gave forty lashes, and Hazrat Umar completed it to eighty lashes, and all are Sunnah (established practices).