Abd bin Hameed bin Nasr عبد بن حميد بن نصر · The Book on Hajj

He heard Sa'd bin Abi Waqas, and Ad-Dahhak bin Qais while they were mentioning Tamattu after "Umrah until Hajj. Ad-Dahhak bin Qais said: "No one does that except one who is ignorant of the order of Allah, Most High." Sa'd said: "How horrible is it what you have said O my nephew!" So Ad-Dahhak (bin Qais) said: "Indeed Umar bin Al-Khattab has prohibited that." So Sa'd said: "The Messenger of Allah did it, and we did it with him."