Al Walid bin Muslim said “I narrated this tradition (mentioned above) to Ibn Al Mubarak and said “And similarly it has been narrated by Ibn Abi Farwah to us on the authority of Nafi’(as narrated by Shu’aib). He (Ibn Al Mubarak) said “Those whom you have named cannot be equal to Malik i.e, Malik bin Anas.

Sunan Abi Dawud Book 15, Hadith 266