Well, technically speaking, it shouldn't be allowed since it is a reference to a real life religion, however, Moderation doesn't involve itself in RP unless specifically asked to moderate on something. I know LNRulez has created an Islamic type religion called Quenraz, of which a sect is Abadi. So you could use those two descriptors if you want, but I will confer with the other mods on Islamic.
Thanks for asking!