Sunan an-Nasa'i 3735
سنن النسائي#3735SahihIbn Juraij said:"Abu Az-Zubair informed me that he heard Jabir saying: 'The Messenger of Allah said: "Whoever is given something on the basis of 'Umra it belongs to him for the rest of his life and after he dies
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Abu GhuddahSahih
Al-AlbaniSahih
Zubair Ali ZaiSahih Muslim
In-book reference: 34:17