Musannaf Ibn Abi Shaybah 15872 — The time of departure from Arafah

Abd al-Rahman bin Yazid said: I was at Arafat with Sayyiduna Abdullah (may Allah be pleased with him), and Sayyiduna Uthman (may Allah be pleased with him) was the leader over the people. When the sun set, Sayyiduna Abdullah said: If the Commander of the Believers departs from Arafat now, he will have attained the Sunnah. And he set off at once.