Sahih Muslim
The Book of Gifts
كتاب الهبات
Chapter 4: The 'Umra (Lifelong Gift)
Sulaiman b. Yasir reported that Jabir gave this verdict. The inheritor has a right (to inherit) the life grant according to the statement of Jabir (b. 'Abdullah) (Allah be pleased with him) which he narrated from Allah's Messenger (ﷺ).
Jabir b. 'Abdullah reported Allah's Apostle (ﷺ) as saying
Life grant is permissible.