Imam Jalaluddin as-Suyuti related that Imam Sufyan bin Uyaynah {Allah have Mercy upon them} said:
“May Allah have mercy upon Imam Malik. He only narrated authentic Ahadith, he would never report anything if it did not come from a reliable one.Thus, in my opinion, Madinah in his absence, has only had a decrease in knowledge after his passing.
{Is’af al-Mubatta fi Rijal al-Muwatta}