Manusmriti

siva.sh/manusmriti/8/281

सहासनमभिप्रेप्सुरुत्कृष्टस्यापकृष्टजः । कट्यां कृताङ्को निर्वास्यः स्फिचं वाऽस्यावकर्तयेत् ॥ २८१ ॥

sanskrit

A low-caste man who tries to place himself on the same seat with a man of a high caste, shall be branded on his hip and be banished, or (the king) shall cause his buttock to be gashed.

english translation

sahAsanamabhiprepsurutkRSTasyApakRSTajaH | kaTyAM kRtAGko nirvAsyaH sphicaM vA'syAvakartayet || 281 ||

hk transliteration by Sanscript