Narrated Ibn Abbas: Saad bin Ubadah asked the Messenger of Allah ﷺ: My Mother has died and she could not fulfill her vow which she had taken. The Messenger of Allah ﷺ said: Fulfill it on her behalf.
Hadith Referenceسنن ابي داود / كتاب الأيمان والنذور / 3307
Hadith Gradingالألبانی:صحيح | زبیر علی زئی:صحيح بخاري (2761) صحيح مسلم (1638)
Narrated Abdullah ibn Abbas: A woman made a voyage and vowed that she would fast one month if Allah made her reach her destination with peace and security. Allah made her reach her destination with security but she died before she could fast. Her daughter or sister (the narrator doubted) came to the Messenger of Allah ﷺ. So he commanded to fast on her behalf.
Hadith Referenceسنن ابي داود / كتاب الأيمان والنذور / 3308
Hadith Gradingالألبانی:صحيح | زبیر علی زئی:صحيح, رواه النسائي (3847 وسنده صحيح) وله شواھد عند أحمد (1/338 وسنده صحيح) وغيره
Hadith Takhrij« تفرد بہ أبو داود، (تحفة الأشراف: 5464)، وقد أخرجہ: سنن النسائی/الأیمان 33 (3848)، مسند احمد (1/216) (صحیح) »
Narrated Buraidah: A woman came to the Prophet ﷺ and said: I gave a slave girl to my mother, but she died and left the salve-girl. He said: Your reward became certain for you, and she (the slave-girl) returned to you as inheritance. She said: She died and one month's fast was due from her. He (the narrator) then mentioned the tradition similar to the one mentioned by Amr bin 'Awn.
Hadith Referenceسنن ابي داود / كتاب الأيمان والنذور / 3309
Hadith Gradingالألبانی:صحيح | زبیر علی زئی:صحيح مسلم (1149)