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." (Using translation from Nasāʾī 2734)
الضَّحَّاكُ «لَا يَصْنَعُ ذَلِكَ إِلَّا مَنْ جَهِلَ أَمْرَ اللهِ» فَقَالَ سَعْدٌ «بِئْسَ مَا قُلْتُ يَا ابْنَ أَخِي» قَالَ الضَّحَّاكُ فَإِنَّ عُمَرَ بْنَ الْخَطَّابِ «نَهَى عَنْ ذَلِكَ» قَالَ سَعْدٌ «قَدْ صَنَعَهَا رَسُولُ اللهِ ﷺ وَصَنَعْنَاهَا مَعَهُ»