Sunan an-Nasa'i, Hadith 1862 ⓘ
It was narrated from 'Abdullah that the Prophet said: "He is not one of us who strikes his cheeks, rends his garment, and calls the calls of the Jahiliyyah."
أَخْبَرَنَا مُحَمَّدُ بْنُ بَشَّارٍ، قَالَ حَدَّثَنَا يَحْيَى، قَالَ حَدَّثَنَا سُفْيَانُ، قَالَ حَدَّثَنِي زُبَيْدٌ، عَنْ إِبْرَاهِيمَ، عَنْ مَسْرُوقٍ، عَنْ عَبْدِ اللَّهِ، أَنَّ النَّبِيَّ صلى الله عليه وسلم قَالَ " لَيْسَ مِنَّا مَنْ ضَرَبَ الْخُدُودَ وَشَقَّ الْجُيُوبَ وَدَعَا بِدَعْوَى الْجَاهِلِيَّةِ " .
also referenced under: Book 21, Hadith 45 (In-Book) & Volume 3, Book 21, Hadith 1863 (DarusSalam)