Al-Ukhdūd (), formerly known as Raqmat (), is located in the south of Saudi Arabia in Bir Hima/Najrān region, about to the south of Riyadh. Exploration of the city was begun around 1997 by group of Saudi historians. Since then, many antiques have been found, and the greatest discovery in the town was of the place where the king of the Kingdom of Ḥimyar punished the Christian community in the town by throwing them into ditches of fire, which are called Ukhdūd in Arabic. According to the experts, the city was built between the 1st century BC and the 1st century AD. The story of these people is mentioned in the Quran, in the chapter al-Burūj.