Umayyah bin Abdullah asked Sayyiduna Ibn Umar (may Allah be pleased with them both) that in the Noble Qur'an we find mention of the prayer of fear and the prayer of residence, but we do not find mention of the prayer of travel (even then, why is the prayer shortened during travel?) He replied, "Nephew! When Allah Almighty sent the Messenger of Allah (peace and blessings be upon him), we knew nothing. We will only do as we saw him doing."