Based on obligatory precaution, the above process should be carried out for the following number of days for each animal:
a. Forty days for a camel
b. Twenty days for a cow
c. Ten days for a sheep
d. Five days for a water-fowl
e. Three days for a domestic hen
If the animal is still considered to be one that consumes najÁsah after this period, one should act upon the above instructions for a period of time after which the animal would not be considered to be consuming najÁsah anymore.