(19) CHAPTER. It is recommended that something should be given in charity on behalf of a person who dies suddenly. And the execution of the vows of the deceased.
Narrated `Aisha: A man said to the Prophet, My mother died suddenly, and I think that if she could speak, she would have given in charity. May I give in charity on her behalf? He said, Yes! Give in charity on her behalf.
Narrated Ibn `Abbas: Sa`d bin Ubada consulted Allah's Apostle saying, My mother died and she had an unfulfilled vow. The Prophet said, Fulfill it on her behalf.