Is it forbidden to pray in clothes to which the fur and hair of a domestic cat have adhered, especially since it is difficult to avoid that?

The ruling on animal hair is the same as the ruling on its leftover drink (su'r). Ibn Qudamah said: "Every animal whose skin, hair, sweat, tears, and saliva are ruled upon, their ruling is the same as their leftover drink (su'r) in terms of purity and impurity." Most scholars have gone to the opinion that hair separated from an animal whose meat is not eaten during its lifetime is pure. Based on this, if some cat hair comes into contact with clothing, it does not render it impure, nor does it invalidate the prayer.