The Book of ad-Dahaya (Sacrifices)
43/29. Chapter:
Saying The Name Of Allah, The Might And Sublime, Over The Sacrificial Animal
Sunan an-Nasai
أَخْبَرَنَا أَحْمَدُ بْنُ نَاصِحٍ، قَالَ حَدَّثَنَا هُشَيْمٌ، عَنْ شُعْبَةَ، عَنْ قَتَادَةَ، قَالَ حَدَّثَنَا أَنَسُ بْنُ مَالِكٍ، قَالَ كَانَ رَسُولُ اللَّهِ صلى الله عليه وسلم يُضَحِّي بِكَبْشَيْنِ أَمْلَحَيْنِ أَقْرَنَيْنِ وَكَانَ يُسَمِّي وَيُكَبِّرُ وَلَقَدْ رَأَيْتُهُ يَذْبَحُهُمَا بِيَدِهِ وَاضِعًا رِجْلَهُ عَلَى صِفَاحِهِمَا .
Anas bin Malik said: "The Messenger of Allah used to sacrifice two pronounce the name of Allah and say: 'Allah Akabar,' and I saw him slaughtering them with his own hand, and placing his foot on their sides "(Sahih )
Reference : Sunan an-Nasa'i 4416In-book reference : Book 43, Hadith 56English translation : Vol. 5, Book 43, Hadith 4421