Sunan an-Nasa'i, Hadith 2811 ⓘ
It was narrated that Abu Dharr said: Tamattu was just for us."
أَخْبَرَنَا بِشْرُ بْنُ خَالِدٍ، قَالَ أَنْبَأَنَا غُنْدَرٌ، عَنْ شُعْبَةَ، عَنْ سُلَيْمَانَ، عَنْ إِبْرَاهِيمَ التَّيْمِيِّ، عَنْ أَبِيهِ، عَنْ أَبِي ذَرٍّ، قَالَ كَانَتِ الْمُتْعَةُ رُخْصَةً لَنَا .
also referenced under: Book 24, Hadith 0 (In-Book) & Volume 3, Book 24, Hadith 2813 (DarusSalam)