in this study, first the history of sacrifice developments through four epochs (first epoch: sacrificing in Mena and consuming them efficiently; second epoch: plethora of Hojaj, burying and burning sacrifices; third epoch: sacrificing in the altar of Vadi Mahsar; fourth epoch: new altar with the new plan of sacrificing) is explained along with fatwas of shia scholars in each epoch with their religious documents. While explaining about the reasons about the necessity of sacrificing in Mena, its religious rule in certain conditions such as wastage of sacrifice in Mena or location of the new altar, which is located in the Moeysam and outside of the Mena and comments and reasons of it have been explained and finally the voluntary sacrificing in the Haram has been accepted and accordingly the sacrifice in the new altar, which is located outside the Mena and inside the haram, according to the religious rues is authenticate.
The method used in this study is historical and jurisprudential and explaining about the epochs of sacrifice and analyzing its current condition from the viewpoint of jurisprudence and history are amongst innovations of this article.