What is the ruling on placing palm fronds on a grave?

Question:
Is it permissible to place palm fronds and flowers on graves on the pretext of alleviating the punishment of the person in the grave, if he is being punished, as the Messenger of Allah (peace and blessings be upon him) did?

Answer:
This is not prescribed; because the Messenger of Allah (peace and blessings be upon him) did not do this except with two graves, regarding which Allah revealed to him their punishment, so he placed two palm fronds on them and said: , but as for the other graves, he did not place anything on them, peace and blessings be upon him. He only placed that on two graves regarding which Allah revealed to him their punishment. No one else is informed of the punishment of the deceased, nor does he know that, so that is among the matters of the unseen, which people do not know, such that they would place a palm frond on it. Therefore, it is not recommended to place palm fronds or date palm branches; because the Messenger of Allah (peace and blessings be upon him) did not place that on the graves of the people of al-Baqi' or the graves of the martyrs. And if it had been a sunnah and a means of drawing near to Allah, he (peace and blessings be upon him) would have done it, and his Companions (may Allah be pleased with them) .