How did Saladin change Al-Azhar after ending Fatimid rule?

After ending Fatimid rule and restoring Egypt to Sunni authority in 1171, Saladin significantly altered the status of Al-Azhar University. Because the institution had been established by the Fatimid dynasty as a center for Ismāʿīlī Shiʿism, Saladin suspended its prayer meetings and classes. This action caused the university to fall into eclipse for nearly a century before it was eventually revived under the Mamluks.1