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Shiavault - a Vault of Shia Islamic Books The Last Luminary and Ways to Delve Into the Light Responsibility 31: Vigilance in Mentioning the Imam We should not take the ‘proper name’ of Imam al-Zaman (ajtf) when we mention him and should observe taqiyyah (dissimulation) as much as possible. The proper name of the Imam is his first name which is the same as the Prophet of Islam (م ح م د).
Since we are not permitted to refer to him by his proper name, we should refer to him through his titles and names of appellation. Without a doubt, it is forbidden (haram) to mention the name of the Imam in gatherings in which the enemies of the religion are present and any place where there is a fear of the enemies. If there is fear that danger may come to a person, then it becomes forbidden to mention the title of the Imam and the names or titles of the other A`immah as well.
However, the prohibition of not mentioning the name of the Imam in other instances, for example in gatherings in which there is no fear or danger of the enemies of Islam, and where it is not necessary to observe taqiyyah. This is a matter of debate amongst our scholars. However that which we deduce from the traditions which speak about this issue is that it is prohibited to mention his proper name (in any gathering).