The need for a religion which abrogates the other religions
If you study thoroughly the religions present on the face of the earth. You will find that there is no inconsistency in the different religions. Indeed, there is no religious community which does not have faith in the truthfulness of its own founder, and belief in his greatness, and that he was perfect and unequalled. This is so because the people of the community find him steadfast in acts of obedience, notice supernatural events in his life, and witness the grant of his supplications.
There are certain things that contribute to facilitating the observance of obligations, and similar traits that are among the essential features of the religious community. All the people have an exemplary pattern of life and a prescribed legal code, wherein the traditions of their elders are followed and examples of of the teachers and leaders of the community are adopted. Thus the foundation of their beliefs is solidified and its pillars are strengthened. Members of the religious community, then support these pillars and struggle in unison for furthering the cause of the community and for preserving its safety and well-being.
Thereafter injustice becomes the order of the day. This happens either due to the ascendancy of those who do not qualify for the leadership of the community, or due to a negligence by the leaders of the community who omit a great deal of what should not be omitted to the extent that nothing but vague remnants of the original religious teachings survive. Each community which starts following its own independant course, curses the rest of the communities. The communities thus engage themselves in mutual condemnation and war. Truth becomes gradually concealed. At such a stage, there arises the need for a righteous leader who can deal with different communities, as a guided ruler deals with tyrannical kings.
This leader who unites the communities into one religion needs to have principles besides the ones mentioned previously.
Among them is that he calls a nation to the right path and purifies them, and improves their condition. Then he takes them as if they were his limbs, and struggles against the people of the earth to bring them to the right path, and he spreads them ( his people) to the far horizons. This is because this religious leader by himself , cannot feasibly fight against countless communities, then it is necessary that the material of his divine law be something like a natural religion for the people of the moderate regions. Therefore in what his people already have of knowledge and the supports of civilazation. Therefore he must induce all of people to follow this divine law because there is no way to entrust the matter (of the divine law) to every group or to the leaders of every age, since the benefit of the legislation would not be achieved through this at all. There is no way to consider the condition of every people and deal with each one of them, so that for each a divine law would be made; since encompassing their customs and condition according to the differences of their cities and the disparity in their religions is something imposible.
All the transmitters have been unable to agree on the unanimous transmission of one divine law, so what would transpire in the case of differing divine laws. Most of the time, the submission of the rest of the people only occurs after preparations and periods of time to which the lifetime of the prophet does not extend, as occured in the case of the presently existing divine laws.
Thus there is nothing better and easier than that he should take into account in the divine laws, the penalties, and the supporters of civilization- the customs of the people to whom he been sent. Taking up this divine law was easy for the first ones due to the testimony of their hearts, and their customs, and it was easy for the later due to attraction to the behavior of the leaders of the religion, thus it is like the natural thing for every people in every age, ancient and modern.
There are causes for the predominance of a religion over others. Among them is publicizing of the practices of that religion over other practices, because the practices of the religion are a manifest thing particularized for it which distinguish its adherents from those of the other religions.
Among them is that he should restrict people so that they do not practice the rituals of others. Among them is that he should hold people accountable for the external forms of pious and sinful actions, and that he should require them to follow these with great with a great compulsion.
