Ad according to Arabian traditions, was the son of Udh, or Uz (the grandson of Shem, Ge 10:23), and the progenitor of a powerful tribe called the Adites, who settled in Er-Raml, or Sandy Arabia (Abulfeda, Hist. Anteislam. p. 17, ed. Fleischer). Like the other kindred tribes of those early times, the Adites soon abandoned the true worship of God, and set up four idols whom they worshipped: Sakia, whom they imagined to supply rain; Hafedha, who preserved them from all foreign and external dangers; Razeka, who provided them with food; and Salema, who restored them from sickness to health (Sale's Koran, p. 122, note). It is said that God commissioned the prophet Hud or Heber to attempt their reformation, but, remaining obstinate in their idolatry, they were almost all destroyed by a suffocating wind. The few who escaped retired with the prophet Hud to another place. Before this severe punishment they had been visited with a dreadful drought for four years, which killed their cattle, and reduced them to great distress (see D'Herbelot, Bibl. Or. s.v. Houd). They are often mentioned in the Koran, and some writers, on the authority of that work, affirm that they were of gigantic stature. SEE ARABIA.