A little cat came to listen Imam. You just have to see his reaction. If my pet cat walks or sits in front of me when I pray if I should continue the prayer or to terminate it to get rid of the cat?
Cats do not disturb the prayers, even if they pass in front of the congregation, because the basic principle of prayer is that it is valid and there is no evidence that the cat violates the prayer.
But the believer must strive to ensure that no one passed in front of him during prayer. Cats are clean animals so if the cat drank from the vessel of water, it becomes dirty. This cat feels very comfortable there and no one tries to get her out.