‏الوصية : Hadeeth No:4005 Abu Huraira (Allaah be pleased with him) reported Allaah's Messenger (sallAllaahu alayhi wa sallam) as saying: When a man dies, his acts come to an end, but three, recurring charity, or knowledge (by which people) benefit, or a pious son, who prays for him (for the deceased)....

‏الصلاة : Hadeeth No:1908 This hadith has been narrated by Ibrahim b Muhammad b. al-Muntashir with the same chain of transmitters....