Sunan an-Nasa'i 3656
سنن النسائي#3656SahihIt was narrated from Sa'd bin 'Ubadah that he came to the Prophet and said:"My mother has died and she had a vow to fulfill. Will it suffice if I free a slave on her behalf?" He said: "Free a slave on behalf of your mother
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Abu GhuddahSahih Lighairihi
Al-AlbaniSahih
Zubair Ali ZaiSahih
In-book reference: 30:46