Aboo Hurayrah quoted the Messenger of Allaah (sallallaahu `alayhi wa sallam) as saying,
“When a man dies, his acts come to an end, except in three cases: an ongoing charity, knowledge from which people continue to benefit, and a RIGHTEOUS CHILD WHO PRAYS FOR HIM.”
Sahih Muslim, vol. 3, p.867, no. 4005
Sunan Abu Dawud, vol. 2, p.812, no.2874
Subhanallah. This is so touching. And the boy is so cute.. But he is so sad. May Allah bless him with grace.. Insha Allah.