The Book of Jihad and Expedition (Kitab Al-Jihad wa'l-Siyar)
Muslim :: Book 19 : Hadith 4313
It has been narrated on the authority of Abu Huraira that the Messenger of Allah (may peace be upon him) said: Do not desire an encounter with the enemy; but when you encounter them, be firm.
Source materials are from the University of Southern California MSA site|
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