daf bit: Shevuot 31

The g'mara on today's daf presents several laws that are all derived from the command to keep far from a false matter. They include:

• A disciple sitting before his master (who is judging a case) who sees that the poor man is right and the wealthy man is wrong must speak up.
• A man who has a claim of 100 zuzim against his neighbor may not sue for 200 zuzim with the expectation of being bargained down.
• A judge should not hear the words of one litigant before the other arrives.
• If two come to court, one dressed in rags and the other in fine garments, they should say to the rich one: either dress like him or dress him like you.

(31a)