Manusmriti

siva.sh/manusmriti/2/197

पराङ्मुखस्याभिमुखो दूरस्थस्येत्य चान्तिकम् । प्रणम्य तु शयानस्य निदेशे चैव तिष्ठतः ॥ १९७ ॥

sanskrit

Going (round) to face (the teacher), if his face is averted, approaching him if he stands at a distance, but bending towards him if he lies on a bed, and if he stands in a lower place.

english translation

parAGmukhasyAbhimukho dUrasthasyetya cAntikam | praNamya tu zayAnasya nideze caiva tiSThataH || 197 ||

hk transliteration by Sanscript