(1) باب الأَمْرِ بِقَضَاءِ النَّذْرِ
Ibn Abbas reported that Sa'd b. Ubida asked Allah's Messenger (ﷺ) for a decision about a vow taken by his mother who had died before fulfilling it. Allah's Messenger (ﷺ) said:
Fulfil it on her behalf. (ID)
Reference (ID): Sahih Muslim 1638 a (ID)
In-book reference (ID): Book 26, Hadith 1 (ID)
USC-MSA web (English) reference(deprecated numbering scheme): Book 14, Hadith 4017 (ID)