De or het moslimtraditie?

The correct Dutch article is:

de moslimtraditie

Rule Words ending in -tie and -sie: almost always de. See the rule

How to use moslimtraditie

the moslimtraditiede moslimtraditie
this moslimtraditiedeze moslimtraditie
that moslimtraditiedie moslimtraditie
our moslimtraditieonze moslimtraditie
your moslimtraditiejouw moslimtraditie
every moslimtraditieelke moslimtraditie
which moslimtraditie?welke moslimtraditie?
a big moslimtraditie / the big moslimtraditieeen grote moslimtraditie, de grote moslimtraditie