Alsiraj Official Website
Sayings (Hadiths) of Prophet Muhammad
About giving in charity on behalf of a deceased person and invoking Allah for him
1-Narrated by Abu-Huraira: Allah’s Messenger said: “when the son of Adam dies no further reward is recorded for his actions, with three exceptions: charity whose benefit is continuous, knowledge from which benefit continues to be reaped, or the supplication of a righteous son for him. "
(Muslim)
2-Narrated Ibn Abbas: a man said: O Messenger of Allah! My mother has passed away. Will it benefit her if I pay charity on her behalf?
He said: “yes." He said: indeed, I have a garden and I make you a witness that I have given it as Sadaqah on her behalf.
Abu-Issa said : this Hadith is Hasan and the people of knowledge act in accordance with it. They said: nothing reaches the deceased except charity and praying to Allah on his behalf.
(Sahih Bukhari)