How to greet Imam Mahdi (hgr)?
Once a person asked Imam Sadiq (pbuh), “Can we say to Imam Qa`em1 (hgr)’ Asalam o Alaik ya Amir al-Mu`minin [Islamic way of saying Hello]?’ ”
The Imam (pbuh) replied:
“No, this is a name that God allocated to [just] Imam Ali (pbuh), and [since then] no one calls himself so, except an unbeliever.”