Sayyidina Ibn Abbas (RA) reported that a man submitted, “0 Messenger of Allah! My mother has died. Will it benefit her if I give sadaqah on her behalf? He said, ‘Yes. The man said, “I have a garden and ask you to witness that I have given it as sadaqah on her behalf”.
[Bukhari 6771 Abu Dawud 2882, Nisai 3656]
--------------------------------------------------------------------------------