If a non-Muslim wishes to take part in Islamic prayer alongside Muslims he must not be prevented, particularly if it is felt that this will incline him towards Islam. However, he should be in a separate row or at the end of a row, so that the rows are not interrupted. It is generally agreed that belief is a condition for the validity and acceptability of all actions. This view is endorsed by the Assembly of Muslim Jurists of America (Decision 14-5) and by Shaikh Abd al-Azeez ibn Baz.
