Sunan an-Nasa'i 1866
سنن النسائي#1866Sahihأَخْبَرَنَا عَبْدَةُ بْنُ عَبْدِ اللَّهِ، قَالَ حَدَّثَنَا يَحْيَى بْنُ آدَمَ، قَالَ حَدَّثَنَا إِسْرَائِيلُ، عَنْ مَنْصُورٍ، عَنْ إِبْرَاهِيمَ، عَنْ يَزِيدَ بْنِ أَوْسٍ، عَنْ أُمِّ عَبْدِ اللَّهِ، امْرَأَةِ أَبِي مُوسَى عَنْ أَبِي مُوسَى، قَالَ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " لَيْسَ مِنَّا مَنْ حَلَقَ وَسَلَقَ وَخَرَقَ " .
It was narrated from Umm 'Abdullah, the wife of Abu Musa, that Abu Musa said:"The Messenger of Allah said: 'He is not one of us who shaves his head, raises his voice in lamentation or rends his garments
Scholarly Authentication
The label above is the grade most of these scholars gave — one dissenting opinion no longer speaks for all of them. If any scholar calls a narration fabricated, that verdict is shown instead, whatever the others say. Each scholar's own wording:
In-book reference: 21:49