We set out for Jihad in the cause of Allah and one of you lagged behind and shrieked like the bleating of a male goat and one of then (goats' gave a small quantity of milk. In case Allah gives me power over one of them, I will punish him (in such a way that it may have a deterrent effect upon others). In another narration transmitted on the authority of Sa'id b Jubair (the words are), that He (the Holy Prophet) turned him away four times."
Sahih Muslim Book 29, Hadith 28