litter box near its bed and enclose the area. you might want to confine it in a small room if you have one. but, if not, a high enough indoor pen would suffice. when you see the cat using the litter box regularly, then you can start taking the box a bit further and remove the enclosure. after a few more days, you would notice that the cat would be using that familiar box of dirt even if it’s in another part of the house.
this is a bit more complicated than letting your cat use the litter box. since toilets are higher and there is a possibility that your cat 