Sunan an-Nasa'i, Hadith 3652 ⓘ
It was narrated from Abu Hurairah that a man said to the Prophet: "My father died and left behind wealth, but he did not leave a will. Will it expiate for him if I give charity on his behalf?"
أَخْبَرَنَا عَلِيُّ بْنُ حُجْرٍ، قَالَ أَنْبَأَنَا إِسْمَاعِيلُ، عَنِ الْعَلاَءِ، عَنْ أَبِيهِ، عَنْ أَبِي هُرَيْرَةَ، أَنَّ رَجُلاً، قَالَ لِلنَّبِيِّ صلى الله عليه وسلم إِنَّ أَبِي مَاتَ وَتَرَكَ مَالاً وَلَمْ يُوصِ فَهَلْ يُكَفِّرُ عَنْهُ أَنْ أَتَصَدَّقَ عَنْهُ قَالَ " نَعَمْ " .
also referenced under: Book 30, Hadith 42 (In-Book) & Volume 4, Book 30, Hadith 3682 (DarusSalam)