Muhammad ibn Sireen (rahimahullāh) said: “Verily, the knowledge of narrating traditions is religion, so be careful from whom you take your religion.” Source: Sahih Muslim, Introduction Grade: Sahih (authentic) according to Imam Muslim
We must be very careful who we choose to take our deen off. My teacher said that people are so particular when they go to a professional for something. For example, a Doctor, they will check his qualifications and check his track record. Or if a person enters into a partnership with someone, they will check everything to do with their partner. But when it comes to deen we take off anyone. By our actions it seems we give more importance to health or money than we give to Akhirah.