Is it permissible for someone who is unable to perform ghusl due to health reasons to go to Friday prayer with tayammum, or should he pray it as Dhuhr?

It is permissible for a sick person who cannot use water to perform tayammum for prayer, whether it is Jumu'ah (Friday prayer) or any other prayer, based on the Almighty's saying: "And if you are ill or on a journey or one of you comes from the place of relieving himself or you have contacted women and find no water, then seek clean earth and wipe over your faces and your hands [with it]. Indeed, Allah is ever Pardoning and Forgiving." Therefore, a sick person who cannot use water should perform tayammum to pray Jumu'ah and attend it.