Sayyiduna A'idh bin Sa'id al-Jasri (may Allah be pleased with him) says: We came as a delegation to the Prophet (peace and blessings be upon him), and I said: O Messenger of Allah, may my father and mother be ransomed for you, pass your hand over my face and supplicate for blessing for me. So he (peace and blessings be upon him) passed his hand over my face and supplicated for blessing for me. Umm al-Banin, who was his wife, says: I never saw him wake from sleep except that his face looked as if it had been oiled (shining), even though he would make do with just a few dates.
Hadith Referenceالمعجم الكبير للطبراني / باب العين / 15126