السلام عليكم ورحمة الله وبركاته What I mean is that my Brother is a Mubtadi probaly even worse. I dont want him to come to Medina or Makkah but my Parents said he must come. So I booked for him and me a Hotel. After that I read a Hadith who gives shelter to a Mubtadi is cursed

Ustadh AbdulAziz al-Haqqan
The Ulama mentioned giving shelter from the punishment of the authorities and that which is similar, therefore as I said it is not in the sense that you have mentioned, and you can further research this may Allah reward you, if you want.