Sahih Muslim
Sahih Muslim Book 014, Hadith Number 4017.
Hadith Section/Book: Sahih Muslim Sahih Muslim Book 14. Vows
Chapter : Not known.
Ibn Abbas reported that Sa'd b. Ubida asked Allah's Messenger (may peace be upon him) for a decision about a vow taken by his mother who had died before fulfilling it. Allah's Messenger (may peace be upon him) said: Fulfil it on her behalf.