What is the ruling on reciting the Qur’an for the deceased at the grave or elsewhere, and does it benefit the deceased, and what is the best way to benefit the deceased?

Celebrating the dead and the anniversary of their passing, and reciting Qur’an at graves are innovations (bid‘ah) and are not permissible, based on the Prophet’s (peace be upon him) saying: “Whoever introduces into this affair of ours that which is not part of it, it is rejected,” and “Whoever does an action that is not in accordance with our affair, it is rejected.” These actions were not part of his Sunnah (peace be upon him) nor the Sunnah of his Rightly Guided Caliphs. Goodness lies in following the Messenger (peace be upon him) and the Rightly Guided Caliphs, for Allah Almighty says: “And the first forerunners [in the faith] among the Muhajireen and the Ansar and those who followed them with good conduct – Allah is pleased with them and they are pleased with Him.” The authentic hadiths clarified what benefits a Muslim after their death: ongoing charity (sadaqah jariyah), knowledge from which others benefit, and a righteous child who supplicates for them. And among what benefits parents after their death: prayer and seeking forgiveness for them, fulfilling their pledges, honoring their friends, maintaining ties of kinship that are only connected through them, and giving charity, performing Hajj, and 'Umrah on their behalf.