There were arguments between Beis Hillel and Beis Shammai in Halachas that were Chayav Korban/Kares. What happened if a person was a follower of Beis Shammai and sinned unknowingly? According to ...
Suppose one does an act on shabbas about which there is a machlokes whether it is forbidden d'oraysia or not (perhaps even a posek holds it is permitted). This person does the act regardless, but then ...