Manu’s rules punish rational interpretation of scripture with excommunication.

Evidence

According to this rule, rationalism as a canon of interpreting the Vedas and smritis is absolutely condemned. It is regarded to be as wicked as atheism, and the punishment provided for it is excommunication. Thus, where a matter is covered by the Veda or the smriti, a Hindu cannot resort to rational thinking. — Ambedkar, B R, Annihilation of Caste_ The Annotated…, 978