Musannaf Ibn Abi Shaybah 14872 — Those who combined Hajj and Umrah

Marwan bin al-Hakam said: We were travelling with Sayyiduna Uthman (may Allah be pleased with him), and he heard the voice of a man reciting the talbiyah for both Hajj and Umrah. Sayyiduna Uthman asked: Who is this? The people answered: It is Sayyiduna Ali (may Allah be pleased with him). Sayyiduna Uthman came to him and said: Do you not know that I have forbidden this? He said: Of course (I know), but I will not abandon the practice of the Prophet (peace and blessings be upon him) because of your word.