Hadithcore
Riyad as-Salihin, 1326

Anas (May Allah be pleased with him) reported:

Whenever the Messenger of Allah (ﷺ) 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)." <b>[Abu Dawud and At- Tirmidhi]</b>.

وعن أنس رضي الله عنه قال‏:‏ كان رسول الله صلى الله عليه وسلم إذا غزا قال‏:‏ ‏

‏اللهم أنت عضدي ونصيري، بك أحول وبك أجول وبك أصول، وبك أقاتل‏

‏ ‏(‏‏(‏رواه أبو داود، والترمذي وقال‏:‏ حديث حسن‏)‏‏)‏‏.‏

References1 variant
In-Book Reference
Book 11, Hadith 42
Sharh · explanationclick to expand
<b>Guidance from the Hadiths:</b><br> 1) It is part of the Prophet’s guidance to persistently implore Allah and seek His refuge, both at good and hard times.<br> 2) It is a great means of salvation to entrust all affairs to Allah Almighty. Indeed, He never disappoints a servant Who turns to Him and relies upon Him.