Tabligh By A Common Man
Man is responsible for his honest and qualified understanding, no matter if it is actually wrong, he will get his reward if his actions conform to his understanding. It is not possible to do research on every topic, however, a kind of trust develops when one finds the opinions of a scholar or doctor or any expert in a field reasonable, and then one follows his opinions when one makes no research. This happens in every field. However, this trust must not be blind. As soon as one finds some fault in his opinion one must stop to investigate and then share.