It is narrated from Marwan bin Al-Hakam that he saw Sayyiduna Ali and Sayyiduna Uthman (may Allah be pleased with them both) between Makkah and Madinah. Sayyiduna Uthman (may Allah be pleased with him) used to prohibit Hajj Tamattu’. When Sayyiduna Ali (may Allah be pleased with him) saw this, he entered into Ihram for Hajj Qiran and said «لبيك بحجة و عمرة» . Sayyiduna Uthman (may Allah be pleased with him) said: Do you see that I am forbidding it, yet you still do the same? Sayyiduna Ali (may Allah be pleased with him) replied: I cannot abandon the Sunnah of the Messenger of Allah (peace and blessings be upon him) because of what anyone among the people says.