Imam Ali (AS) said, Never seek to challenge anyone in combat, but if you are challenged, then respond; for the one who seeks it is an aggressor, and the aggressor is struck down.
Nahj al-Balāgha #2153233. Amīr al-mu’minīn said to his son al-Ḥasan, peace be upon them both: Do not call out for fighting, but if you are called to it do...