Is it is fine for us to study under a person whose manhaj is not clear ?
No, it is not for a person to study under a person until he knows his manhaj. As it came clearly in many narrations of salaf like saying of tabiee Ibn Seereen, verily this knowledge is deen, so look at whom you want to take your deen from.
Answered by : Shaykh Nawwas Al Hindi
Translated the summary of the answer by : AbdunNoor Al Hindi