Sahih Muslim #2981 · The Book of Pilgrimage

Sahih MuslimA hadith like this is transmitted on the authority of Imran b. Husain
Sahih Muslim · Book 15 · The Book of Pilgrimage
Sahih Muslim · كتاب 15 · كتاب الحج
We did that (Tamattu') in the company of Allah's Messenger (ﷺ) and he did not say anything but he (the Holy Prophet) commanded us to do it.
وَحَدَّثَنِيهِ مُحَمَّدُ بْنُ حَاتِمٍ، حَدَّثَنَا يَحْيَى بْنُ سَعِيدٍ، عَنْ عِمْرَانَ الْقَصِيرِ، حَدَّثَنَا أَبُو رَجَاءٍ عَنْ عِمْرَانَ بْنِ حُصَيْنٍ، ‏.‏ بِمِثْلِهِ غَيْرَ أَنَّهُ قَالَ وَفَعَلْنَاهَا مَعَ رَسُولِ اللَّهِ صلى الله عليه وسلم وَلَمْ يَقُلْ وَأَمَرَنَا بِهَا ‏.‏
Reference : Sahih Muslim 2981In-book reference : Book 15, Hadith 189