Putting a crescent
    on top of the minaret of a mosque
Question

                Regaurding the use of the cressent: 1. Is
      it sunnah to use the cressent moon as a symbol? (i.e. hadith or Qur'an?) 2. secondarlly
      so, on the top of the Masjid in Bloomington IN ( and many MANY others around the world)
      they use this symbol, BUT I heard from a brother that it was originally a pagan symbol
      (worship of the moon etc) --- if so should we not all remove this? I am a bit confused and
      have been unable to find fatwa or hadith. thank you - wa alekium salaam.
Praise be to Allah.After consulting with scholars and muftis, we have learned that there
    is no known basis in Islam for putting a crescent on top of the minaret. Some scholars
    forbid doing so and consider it to be something that is newly-innovated in the religion.
    The practice may also contain some element of imitating the kuffaar, especially if it is
    proven that the crescent is a symbol used by those who worship heavenly bodies. So we
    should not use this symbol, and the mosques money should not be spent on something
    that serves no Islamic purpose. And Allaah knows best.