The As-Sajadah Mosque (), also known as Asy-Syukr Mosque or Abi Dzar Mosque (), is a Sunni Islam mosque, located north of Al-Masjid an-Nabawi in Medina, Saudi Arabia.
The mosque is called "As-Sajadah" meaning "the prostration" because of an account of the Islamic prophet Muhammad prostrating here after hearing a good news from Gabriel regarding salawat. The mosque is better known as Abi Dzar Mosque because it is on Abi Dzar street. It was renovated and expanded in 2000.