In one of his narrations over two hundred questions of Nafi'...

In one of his narrations over two hundred questions of Nafi' ibn al-Azraq are replied to in the form of poetry; al-Suyutl in his book, al-Itqan, related one hundred and ninety of these questions. It is evident, therefore, that many of the narrations made by the commentators amongst the companions cannot be counted as actual narrations from the Prophet himself; therefore, such additional material related by the companions must be rejected.

The second group of commentators were the companions of the followers (tabi'un), who were the students of the companions.…