Hadith 1326

Anas (May Allah be pleased with him) reported: Whenever the Messenger of Allah (PBUH) set out to participate in Jihad, he would supplicate: "Allahumma Anta 'adudi wa nasiri, bika ahulu, wa bika asulu, wa bika uqatilu (O Allah, You are my Supporter and my Helper. With Your help I get strength, and with Your help I bounce upon the enemy and defeat it, and with Your help I fight)."

[Abu Dawud and At- Tirmidhi].