Abu Umamah (may Allah be pleased with him) narrates that the Messenger of Allah (peace and blessings be upon him) said: "Whoever, for the sake of Allah’s pleasure, passes his hand over the head of an orphan, then for every hair that his hand passes over, he will receive a good deed. And whoever treats well any orphan boy or girl under his care, he and I will be like this in Paradise." And he joined his two fingers together. (Narrated by Ahmad, Tirmidhi, and he said: This hadith is gharib. Its chain is weak. Also narrated by Ahmad and Tirmidhi.)