There is a narration: “The Sufyan will be an eminent scholar; he will fall into misguidance through his learning. Numerous other scholars will follow him.”
Suyuti, al-Fath al-Kabir, i, 315; ii, 185; iii, 9; al-Hawi li’l-Fatawa, ii, 217; Abu ‘Abdullah Daylami, Musnad al-Firdaws, i, 266.
Bukhari, Da’wat, 37, 39, 44, 45, 46; Adhan, 149; Jana’iz, 88; Fitan, 26; Muslim, Masajid, 127-8, 130-4; Musnad, vi, 139.