Sunan an-Nasa'i 3713
سنن النسائي#3713Sahih(A different chain) from Hajjaj, from Abu Az-Zubair, from Tawus, from Ibn 'Abbas, who said:"'Umra and Ruqba are not proper. Whoever gives something on the basis of 'Umra or Ruqba, it belongs to the one to whom he gave it on that basis, both during his lifetime and after his death." Hanzalah narrated it in Mursal form
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 ZaiHasan
In-book reference: 33:8