Narrated Ibn `Abbas: A man said to Allah’s Messenger (peace be upon him),
“My mother died, will it benefit her if I give in charity on her behalf?” The Prophet (peace be upon him) replied in the affirmative. The man said, “I have a garden and I make you a witness that I give it in charity on her behalf.”
Sahih al-Bukhari, Vol. 4, Book 55, Hadith 33
