Upon encountering an enemy or those of authority

اللّهُـمَّ أَنْتَ عَضُـدي وَأَنْتَ نَصـيري بِكَ أَجـولُ وَبِكَ أَصـولُ وَبِكَ أُقـاتِل

Allāhumma anta `aḍudī, wa anta naṣīrī. bika ajūlu, wa bika aṣūlu, wa bika uqātil.

O Allah, You are my strength and You are my support. For Your sake, I go forth and for Your sake, I advance and for Your sake, I fight.