Sayyiduna Jabir bin Abdullah (may Allah be pleased with both of them) narrates that the Messenger of Allah (peace and blessings be upon him) said: Whoever gives someone an ‘Umra (life grant) for him and his children, then it will belong to the one to whom it was given; the giver will not get it back, because he has given such a gift in which inheritance has taken effect.
Hadith Referenceالمنتقى ابن الجارود / كتاب الطلاق / 987
Hadith Gradingغلام مصطفےٰ ظهير امن پوري:صحيح
Hadith Takhrijاز غلام مصطفےٰ ظهير امن پوري:«صحيح البخاري : 2626، صحيح مسلم : 1625»