Sayyiduna Mu'adh bin Jabal (may Allah be pleased with him) narrates: The Prophet Muhammad (peace and blessings be upon him) combined the prayers during a journey. This journey was during a military expedition. He combined the Zuhr and Asr prayers, and the Maghrib and Isha prayers. The narrator says: I asked, "Why did the Prophet (peace and blessings be upon him) do this?" So Sayyiduna Mu'adh replied: The Prophet (peace and blessings be upon him) wanted that he should not put his Ummah in difficulty.