Imran bin Husain · The Book of Hajj

"I was sitting with 'Uthan and he heard 'Ali reciting the Talbiyah for "Umrah and Hajj (together). He said 'Were you not forbidden to do this?' He said: 'Yes, but I heard the Messenger of "Allah reciting the Talbiyah for them together, and I will not igore what the Messenger of Allah said in favor of what you say.''

during the year that Mu'awiyah bin abi sufyan performed Hajj, he heard Sa'd bin Abi Waqqas and Ad-Dahhak bin Qais talking about joining 'Umrah to Hajj (Tamattu) Ad-Dahhak said: "none does that but one who is ignorant of the ruling of Allah." Sa'd said: "What a bad thing to say, O son of my brother!" Ad-Dahhak said: "Umar bin Al-Khattab forbade that." Sa'd daid: "The Messenger of Allah did that and we did it with him."