What should I do regarding my doubt about the transfer of urine wetness resulting from incontinence to house carpets or other homes?

If there is doubt about the transfer of impurity to furnishings and places, then nothing needs to be done; because the original state of these places is purity, and impurity is not determined by mere doubt. Rather, the original state remains until certainty is achieved regarding its defilement. However, if certainty is achieved regarding the transfer of impurity, then it is not permissible to pray on furnishings or in places known with certainty to be impure, except after purifying them with water.