Sa'd bin 'Ubadah came to the Prophet and said: "My mother has died and she had a vow to fulfill but she did not do so." He said: "Fulfill it on her behalf." (Using translation from Nasāʾī 3663)
جَاءَ سَعْدُ بْنُ عُبَادَةَ إِلَى النَّبِيِّ ﷺ فَقَالَ إِنَّ أُمِّي مَاتَتْ وَعَلَيْهَا نَذْرٌ وَلَمْ تَقْضِهِ قَالَ «اقْضِهِ عَنْهَا»