Bismillahi Al-Rahmani Al-Rahim
T he following is paraphrased from the latest Hanbali fiqh lesson. I mention it to show the incredible broadness the Hanbalis actually have when it comes to donating reward for pious actions. Whether or not it is a sunna is not the same as whether or not it is permissible and whether or not the reward actually reaches. Some object saying that this is presumptuous to even assume that there is reward to donate. Well, can't the same be said about our five daily prayers? According to that reasoning we would still be re-praying our very first obligatory prayer until our death.
Both sides have evidence. We should all just knock it off and get back to umma building.
And Allah knows best.
It is not offensive to recite Qur'an over the grave.
Any action which draws closer to Allah (including supplication, seeking forgiveness, prayer, fasting, pilgrimage and recitation) that a Muslim performs with donating the reward to someone, whether deceased or living, benefits that person.
Imam Ahmad said, "Every good action reaches the deceased because of the transmitted texts concerning it." Al-Majd, Ibn Taymiyyah's grandfather and others mentioned it.
It is even permissible to donate the reward to the Prophet (Allah bless him and give him peace), and the reward reaches him.