وعن سهل بن سعد رضي الله عنه
قال: قال رسول الله صلى الله عليه وسلم: «ثنتان لا تردان، أو قلما تردان: الدعاء عند النداء وعند البأس حين يلحم بعضهم بعضًا»
The Messenger of Allah (sallallahu alayhi wa sallam) said, “Supplications at two times are never turned down (or said, ‘Are seldom turned down’), a supplication after the Adhan has been proclaimed, and a supplication during the battle combating the enemy.”.
Riyad as-Salihin 1325, Book 12, The Book of Jihad, Hadith 41. 1 min read