Sayyiduna Abu Rafi' (may Allah be pleased with him) said: The Messenger of Allah (peace and blessings be upon him) came out to us with a radiant face; joy was evident on his (peace and blessings be upon him) face. He (peace and blessings be upon him) said: "I saw my Lord in the most beautiful form. He said to me: O Muhammad, do you know what the highest assembly (of angels) dispute about? I said: O my Lord, about the expiations. He asked: And what are the expiations? I said: Conveying the water of ablution to its places despite difficulties, walking on foot to the prayers, and waiting for one prayer after another."
Hadith Referenceالمعجم الكبير للطبراني / باب الألف / 934