Sayyiduna Amr bin Malik al-Qushayri (may Allah be pleased with him) relates: I heard the Prophet (peace and blessings be upon him) say: "Whoever takes an orphan child of two Muslim parents into his food and drink until Allah Almighty makes that child self-sufficient, Paradise becomes binding for that person."
Imam Ahmad and Imam Tabarani recorded it; its chain contains a narrator, Ali bin Zayd, and he is hasan al-hadith (good in hadith), and the remaining narrators of this report are the narrators of the Sahih.