Abu Hurairah, may Allah be pleased with him, narrated that the Messenger of Allahﷺ  said:

"When a person dies, his deeds are cut off except for three: Continuing charity, knowledge that others benefited from, and a righteous son who supplicates for him.”

Grade: Sahih (Darussalam)   Reference: Jami` at-Tirmidhi 1376  In-book reference: Book 15, Hadith 57  English translation: Vol. 3, Book 13, Hadith 1376