SHAFAQNA – The Grand Ayatollah Sistani answered questions about cat’s hair.
Question: What is the ruling about keeping and training cat and rabbit? Does the hair of these animals nullify the Salaat?
The Grand Ayatollah Sistani: There is no problem in keeping and training them, and if the number of hair is one or two, the Salaat is not nullified.
Source: PERSIAN SHAFAQNA