Islamic invasion of Spain

It had been mentioned by Ibn Al Atheer in his book The Complete History (Part IV), when Mussa bin Nusair invade Andalusia in the year 93 Hijri, leading a huge army. First he marched into the city of Ibn elsulaim ( Grazalema ), then to Carmona the greatest fort of Andalusia, then Seville, the greatest city of Andalusia in that time, besieged for months then unlock it so its people fled, then moved to Mérida killed a lot of its residents, at last he entered Zaragoza. After that he returned to Al Sham (Syria) with spoils gained, together with thirty thousand virgin of the Goths slaved by him!