Leviticus 14:35

14:35 then whoever owns the house must come and declare to the priest, ‘Something like an infection is visible to me in the house.’

Leviticus 5:1

Additional Sin Offering Regulations

5:1 “‘When a person sins in that he hears a public curse against one who fails to testify and he is a witness (he either saw or knew what had happened) and he does not make it known, then he will bear his punishment for iniquity.