(7) باب إِذَا وَجَدَ مَعَ كَلْبِهِ كَلْبًا غَيْرَهُ
It was narrated that 'Adiyy bin Hatim said:
"I asked the Messenger of Allah about dogs and he said: 'If you release your dog and say the name of Allah, then eat, but if you find another dog with your dog then do not eat, for you only said the name of Allah over your dog, not any other.""
Reference: Sunan an-Nasa'i 4269
In-book reference: Book 42, Hadith 7
English translation: Vol. 5, Book 42, Hadith 4274