It is narrated from Sayyiduna Abdullah bin Abbas (may Allah be pleased with them both) that a man asked the Prophet (peace and blessings be upon him) that his mother had died, so would it benefit her if he gave charity on her behalf? He (peace and blessings be upon him) said: "Yes." He said: I have an orchard (makhrafah), and I make you a witness that I have given it in charity on her behalf. (The narrator) Rawh said: Makhrafah means a date-palm orchard.
Hadith Referenceالمعجم الكبير للطبراني / باب العين / 11581