Narrated Ibn 'Abbas: Sad bin Ubada consulted Allah's Apostle saying, "My mother died and she had an unfulfilled vow." The Prophet said, "Fulfill it on her behalf."
— Sahih Bukhari, Volume 4, Book 51: Wills and Testaments (Wasaayaa), Hadith #23
Narrated Ibn 'Abbas: Sad bin Ubada consulted Allah's Apostle saying, "My mother died and she had an unfulfilled vow." The Prophet said, "Fulfill it on her behalf."
This hadith is from the book of Wills and Testaments (Wasaayaa) in Sahih Bukhari, compiled by Imam al-Bukhari. It is hadith number 23 in book 51 of volume 4.
This hadith is referenced in the following topics: Wills, Parents.