Sahih Muslim · Hadith 2373
The Book of Zakat - كتاب الزكاة
وحدثنا محمد بن عبد الله بن نمير، حدثنا محمد بن بشر، حدثنا هشام، عن أبيه، عن عائشة، أن رجلا، أتى النبي صلى الله عليه وسلم فقال يا رسول الله إن أمي افتلتت نفسها ولم توص وأظنها لو تكلمت تصدقت أفلها أجر إن تصدقت عنها قال " نعم ".
'A'isha said that a person came to the Apostle of Allah (may peace be upon him) and said: My mother died suddenly without having made any will. I think she would have definitely given Sadaqa if she had been able to speak. Would she have a reward if I gave Sadaqa on her behalf? He (the Holy Prophet) said: Yes.
Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).