Imâm Al-Shâfi’î said:

Whenever any people of desires (heretics) came to Mâlik he would say to them, “As for me, I am upon clarity as regards my religion. As for you, you are a doubter, go and argue with another doubter like yourself.”

Al-Dhahbî in Siyar A’lâm Al-Nubalâ’ under the biography of Imâm Mâlik.