An Hadith is referred to as da'if because

A.

it has defects in its isnad and matn

B.

it is sometimes supported with evidences

C.

all its transmitters are reliable

D.

it is a fabricated tradition

Correct answer is A

 

A Hadith is referred to as da'if (weak) because it has defects in its isnad (chain of narrators) and matn (content). This means that there may be issues with the reliability of the narrators or inconsistencies in the content of the Hadith.