وَحَدَّثَنِي عَنْ مَالِكٍ، عَنْ نَافِعٍ، أَنَّ عَبْدَ اللَّهِ بْنَ عُمَرَ، كَانَ إِذَا طَعَنَ فِي سَنَامِ هَدْيِهِ وَهُوَ يُشْعِرُهُ قَالَ بِسْمِ اللَّهِ وَاللَّهُ أَكْبَرُ .
Yahya related to me from Malik from Nafi that Abdullah ibn Umarsaid, when nicking the hump of his sacrificial animal to brand it, "Inthe name of Allah, and Allah is greater." Translation Not Available
Book Ref: Muwatta Imam Malik Book 20 Hadith 850
Web Ref: Muwatta Imam Malik Book 20 Hadith 147