Two supplications are never rejected, or are rarely rejected: supplication made upon hearing the call to prayer and during battle when the two armies are engaged in fighting

This Hadīth clarifies the virtue of Jihad, as Allah, the Exalted, answers the supplication of the Mujāhid when he is engaged in the battle. It also clarifies the virtue of the call to prayer as Allah, the Exalted, answers the supplication of the Muslim when the Adhān is announced and until the Iqāmah is announced.