What is the ruling on holding mourning gatherings and the fortieth-day ceremony if the deceased has willed it?

The questioner : The second question, Shaykh, regarding setting up tents, holding mourning gatherings, and reciting the Qur'an in these gatherings on Thursday and the fortieth day: is it permissible, even if the deceased has willed it?

The Shaykh : This, may Allah bless you, is an invalid bequest, and it is not permissible to carry it out.

The questioner : It is not permissible to make such a bequest.

The Shaykh : The bequest is not permissible, and it is not permissible for the deceased's relatives to carry it out, because this is a bid'ah (religious innovation), and every bid'ah is misguidance,

The questioner : Yes.

The Shaykh : and the deceased who willed it.

The questioner : Yes.

The Shaykh : If his family does it, he will be punished for it.

The questioner : Yes. Yes.