When you release your dog
They ask you, [O Muhammad], what has been made lawful for them. Say, "Lawful for you are [all] good foods and [game caught by] what you have trained of hunting animals which you train as Allah has taught you. So eat of what they catch for you, and mention the name of Allah upon it, and fear Allah ." Indeed, Allah is swift in account.
[Qur'aan 5:4]
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.""
[Sunan al-Nasaa'i - The book of hunting and slaughtering - Chapter: If he finds another dog with his dog - Hadith No. 4269]
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