Narrated Aisha: A man said to the Prophet (p.b.u.h), "My mother died suddenly and I thought that if she had lived she would have given alms. So, if I give alms now on her behalf, will she get the reward?" The Prophet replied in the affirmative.
— Sahih Bukhari, Volume 2, Book 23: Funerals (Al-Janaa'iz), Hadith #470
