Hazrat Umro Bin Malik Kashiri RA narrates that I heard the Prophet Muhammad PBUH saying: ‘The man who shared his meals with such an orphan whose parents were Muslims, meaning took him under his guardianship till the time Allah makes the child independent (from their guardianship) meaning he starts fulfilling his needs himself. Paradise becomes wajib for such a man. (Masand Ahmed; Tibrani; Majma Al-Zawa'id)