Sunan At-Tirmidhi

Muhammad bin Abdullah bin Al-Harith bin Nawfal narrated that: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