Maqrizi's Adh-Dahab
From MedNub
From: Adh-dhahab-al masbuk
... The King of the Takrur, Musa Mallil, was the first of the Takrur kings to accomplish the pilgrimage (hajj).
... It is said that he arrived (in Cairo) with fourteen thousand slave girls (arba'at 'ashar alf jariya) in charge of his private service. His men (ashab) went to buy girl-slaves from the Turks, the Hubush, and girl singers and robes. The price of the gold dinar dropped to six dirhams.
(Gamaleddin, pp. 112 - 113).