(8) باب فَضْلِ الصَّدَقَةِ عَنِ الْمَيِّتِ
It was narrated from Abu Hurairah that the Messenger of Allah said:
"When a man dies all his good deeds come to an end except three: Ongoing charity (Sadaqah Jariyah), beneficial knowledge and a righteous son who prays for him." (ID)
Reference (ID): Sunan an-Nasa'i 3651 (ID)
In-book reference (ID): Book 30, Hadith 41 (ID)
English translation (ID): Vol. 4, Book 30, Hadith 3681 (ID)