Manusmriti

siva.sh/manusmriti/9/63

नियुक्तौ यौ विधिं हित्वा वर्तेयातां तु कामतः । तावुभौ पतितौ स्यातां स्नुषागगुरुतल्पगौ ॥ ६३ ॥

sanskrit

If those two (being thus) appointed deviate from the rule and act from carnal desire, they will both become outcasts, (as men) who defile the bed of a daughter-in-law or of a Guru.

english translation

niyuktau yau vidhiM hitvA varteyAtAM tu kAmataH | tAvubhau patitau syAtAM snuSAgagurutalpagau || 63 ||

hk transliteration by Sanscript