Ehya night
Ehya (Arabic: احیاء, Persian: اِحیا) or Vigil night (spending the night in prayer) is one of the most important traditions among Shia Muslims. According to most commentators, vigil for the purpose of night prayer, as it appears from Surah Al-Muzzammil of the Quran was obligatory for about a year at the beginning of Islam, and Muslims performed it alongside the Islamic prophet Muhammad.