What is the ruling on the saliva left by a dog on things?

Answer

Praise Be to Allah and Peace Be Upon His Messenger.

Referring to your question, if the dog touches your shoes or carries them by its mouth, this does not have any influence on your ablution. Your ablution is still valid even if you carry the shoes or put them on. If the shoes remain dry, and you were putting them while performing the prayer, your prayer is valid and correct. If you find the shoes wet, you have to purify them by washing them seven times; the first one of these seven times must be performed by using dirt. The prophet said: “The purification of the utensil belonging to any one of you, after it is licked by a dog, lies in washing it seven times, using dirt for the first time.” Agreed upon