By similar reasoning...

By similar reasoning, it is clear that someone who has grown up believing in Judaism or Christianity must consider other religions to which people have been called by a prophet who came after their own prophet. for example. For example, the Jews must evaluate Islam and Christianity according to what was said previously about the necessity to consider religions rationally, and Christians must consider the truth of Islam.

It follows neither of them can be excused for believing in their own religions while ignoring the subsequent religions because there is nothing in Judaisms and Christianity which could contradict these religions, for neither Musa (A.S) nor 'Isa (A.S) stated that no prophet would come after them. It is surprising how christians and Jews can be sure in their belief and in their religions without considering the truth of the subsequent and last religion.

Wisdom dictates that the weight the truth of the subsequent religion or religion. And if the truth is not established, then they should continue with their original beliefs. The Muslim, on the other hand, as we stated earlier, because of his belief in Islam, has no need to consider the truth of the previous religions or of any future ones.

As for the previous religions Islam has confirmed them: however; the Muslim should not follow their commandments or their books, because Islam has superseded them. And as regards future religions,the Holy Prophet of Islam, Muhammad (A.S) said: No prophet will come after me. Since in the eyes of a Muslim the Prophet is honest and truthful, and as Allah has said: Nor does he speak from his own desire. This is nought but a revelation (53;3-4)there is no need to prove the falsity of nay new religion.

Now it is the duty of a Muslim, when a long period has elapsed since the time of the prophet, and many opinions, beliefs and sects have arisen, to choose the way which he can be sure will guide him to the commandments of Allah as they were sent to Muhammad (S.A), because the Muslims must carry out all the commandments as they were revealed to the Prophet. So how can he be sure that these commandments are the same as were revealed to the Prophet?

Just as Muslim are divided into different sects on the basis of their opinions, so their prayer, worship and behaviour vary. What, then, should he do?what school should he follow in his worship and in such matters as marriage, divorce, inheritance, buying and selling, punishment, blood-money and the like?