Khasf al-Bayda' (Arabic: خسف البیداء, Persian: خسف بیدا), or "Al-Khasf bil-Bayda" (i.e. "Swallowing in the land of Bayda")[1][2] is an event that "the Earth will swallow the land (of al-Bayda)" where is a desert between Mecca and Medina; and according to (Islamic) traditions: the army of Sufyani will be collapsed in the land of al-Bayda.[3][4][5]