Wills and Testaments (Wasaayaa)
55/19. Chapter:
Charity on behalf of a person who dies suddenly. And the execution of the vows.
Sahih Bukhari
حَدَّثَنَا عَبْدُ اللَّهِ بْنُ يُوسُفَ، أَخْبَرَنَا مَالِكٌ، عَنِ ابْنِ شِهَابٍ، عَنْ عُبَيْدِ اللَّهِ بْنِ عَبْدِ اللَّهِ، عَنِ ابْنِ عَبَّاسٍ ـ رضى الله عنهما ـ أَنَّ سَعْدَ بْنَ عُبَادَةَ ـ رضى الله عنه ـ اسْتَفْتَى رَسُولَ اللَّهِ صلى الله عليه وسلم فَقَالَ إِنَّ أُمِّي مَاتَتْ وَعَلَيْهَا نَذْرٌ. فَقَالَ " اقْضِهِ عَنْهَا ".
Narrated Ibn `Abbas: Sa`d bin Ubada consulted Allah's Messenger (ﷺ) saying, "My mother died and she had an unfulfilled vow." The Prophet (ﷺ) said, "Fulfill it on her behalf."
Reference : Sahih al-Bukhari 2761In-book reference : Book 55, Hadith 24USC-MSA web (English) reference : Vol. 4, Book 51, Hadith 23