Is it permissible to pray in a house having a dog?

I have a puppy and it lives in the home with my family and I, it was purchased for protect or a deterent for criminals and a pet. Can I pray successful in a room that he never enters etc and is kept clean?

Dear Brother / Sister,

You can live and worship in a house having dog. It is enough for the floor that you perform salah on, to be clean.
Hz. Muhammad (pbuh) says: “Some rewards of a dog raising person that he won for his good deeds decrease everyday except that it is for hunting, for the sheep, or as a guard for gardens or fields.” (Bukhari, Zabaih, 6; Muslim, Musakhat, 46,50,56-58)

Raising dog at home without a necessity like protection or hunting is banned in Islam
For further information about this subject please click on the links given below;

Is there a drawback in raising dog? Can we raise dog in the garden?

Is it forbidden to feed dog in Islam? 

Questions on Islam