A man said, "Messenger of Allah, my mother has passed away. Will it benefit her if I give charity on her behalf?"He replied, "Yes."The man said, "I have an orchard, and I ask you to bear witness that I have given it as charity on her behalf."
حدثنا روح حدثنا زكريا أخبرنا عمرو بن دينار عن عكرمة
أن رجلا قال يا رسول الله إن أمه توفيت أفينفعها إن تصدقت عنها فقال نعم قال فإن لي مخرفا وأشهدك أني قد تصدقت به عنها
Its isnad is sahih. It is an abridgment of 3080, and see also 3420, 3506. Al-Makhraf, with fatha on the mim and the ra, with a silent kha between them, refers to an orchard of palm trees, while with kasra on the mim, it refers to the palm tree itself.