Is the spray of camel and cow urine pure, as some sheikhs say? And is cat urine likewise? And is wiping sufficient if the place is difficult to wash?

The urine of an animal whose meat is permissible to eat is pure, according to the more preponderant opinion, like the urine of camels, because the Prophet (peace and blessings be upon him) commanded its consumption. As for cat urine, it is impure because its meat is not permissible to eat. Impurity must be washed with water; merely wiping it is insufficient, except for what is explicitly excluded by evidence. It is sufficient to wash the spot until its purity is certain if it is difficult to pinpoint the exact location of the impurity.