Explanation:

Talaaq-i-Biddat:
It came into vogue during the second century of Islam. It has two forms: (i) the triple declaration of talaaq made in a period of purity, either in one sentence or in three, (ii) the other form constitutes a single irrevocable pronouncement of divorce made in a period of tuhr or even otherwise. This type of talaaq is not recognized by the Shias. This form of divorce is condemned. It is considered heretical, because of its irrevocability.