It is narrated from Hazrat Abu Musa Ash'ari (may Allah be pleased with him) that we presented ourselves before the Noble Prophet (peace and blessings be upon him). We requested animals for riding from the Noble Prophet (peace and blessings be upon him), so the Noble Prophet (peace and blessings be upon him) said, "By Allah! I cannot mount you, for I have nothing to mount you on." We waited for a while, "as long as Allah willed," then the Noble Prophet (peace and blessings be upon him) ordered for three camels with bright foreheads for us. When we were about to return, one of us said to the other, "We had come to the Noble Prophet (peace and blessings be upon him) with a request for riding animals, and the Noble Prophet (peace and blessings be upon him) had sworn that he would not give us riding animals. Let us go back so that we may remind the Noble Prophet (peace and blessings be upon him) of his oath." So we again presented ourselves before the Noble Prophet (peace and blessings be upon him) and said, "O Messenger of Allah (peace and blessings be upon him), we had come to you with a request for riding animals, and you had sworn that you would not give us riding animals, yet you gave us animals?" The Noble Prophet (peace and blessings be upon him) said, "I did not mount you, rather Allah Almighty did. By Allah! If Allah wills, whenever I take an oath and see something better in another thing, I will choose that and offer expiation for my oath."