Istibra of an animal which eats Najasat
226. The dung and urine of an animal which is habituated to eating human excrement, is Najis, and it could be made Pak by subjecting it to "Istibra", that is, it should be prevented from eating Najasat, and Pak food should be given to it, till such time that it may no more be considered an animal which eats Najasat.
As a recommended precaution, the following animals should be prevented from eating Najasat and Pak food should be given to it for the period specified:
If the animals do not cease to be considered as eaters of Najasat after the specific period is completed, it is recommended that they should be further prevented from eating Najasat until it may no more considered as an animal which eats Najasat.