What are the rulings concerning funerals in Islam, and are wearing black, erecting a mourning tent (ṣīwān al-ʿazāʾ), prohibiting certain types of sweets for the deceased's family, and eating at the deceased's home instead of preparing food for them considered innovations (bidʿah)?

A summary of what is legislated to be done at the time of death and thereafter, as well as the ruling on wearing black, mourning tents, and offering food to the deceased's family, and their offering it to others, has been previously explained in earlier fatwas. It is recommended to read the book "Ahkam al-Jana'iz" (Rulings on Funerals) by Sheikh Al-Albani.