Malik related to me from Ibn Shihab from Abu Salama ibn Abd ar-Rahman ibn Awf from Jabir ibn Abdullah al-Ansari that the Messenger ofAllah, may Allah bless him and grant him peace, said, "If someone isgiven a life pension, for him and his posterity, it belongs to theperson to whom it has been given. It never reverts to the one who gaveit because he gave a gift and the rules of inheritance apply to it."
USC-MSA web (English) reference: Book 36, Hadith 43
Arabic reference: Book 36, Hadith 1446