The Zuhr prayer (Arabic: صَلَاة ٱلظُّهْر‎, Ṣalāt aẓ-Ẓuhr; IPA: [sˤa.laːt aðˤ.ðˤuhr], "noon prayer"), also transliterated Dhuhr, Duhr or Thuhr, is the second of the five daily obligatory prayers (salah) for practicing Muslims. It contains four units (rakaʿāt) and begins after the Sun reaches its zenith.On Friday, the Zuhr prayer is replaced or preceded by Friday prayer, which is obligatory for Muslim men who are above the age of puberty and meet certain requirements to pray in congregation either in a mosque or with a group of Muslims.