Is the place a dog walked on pure or impure, and if a phone wet with rain falls on a place a dog walked on, does it become impure? And what is the ruling if a dog licked its paw and then walked on the place without that being seen?

The place does not become impure merely by a dog walking on it, unless something wet from it, such as saliva, mucus, or urine, falls onto it. The ruling does not change if the place becomes wet from rain after a dog has walked on it, as dogs used to enter and exit the mosque during the time of the Prophet, peace and blessings be upon him, without anything being sprinkled. The Malikis do not consider the dog's essence to be impure; thus, its saliva, mucus, and sweat are considered pure by them. It is advisable to be cautious of obsessive thoughts and to turn away from them.