Manusmriti
य आवृणोत्यवितथं ब्रह्मणा श्रवणावुभौ । स माता स पिता ज्ञेयस्तं न द्रुह्येत् कदा चन ॥ १४४ ॥
That (man) who truthfully fills both his ears with the Veda, (the pupil) shall consider as his father and mother; he must never offend him.
english translation
ya AvRNotyavitathaM brahmaNA zravaNAvubhau । sa mAtA sa pitA jJeyastaM na druhyet kadA cana ॥ 144 ॥
hk transliteration by Sanscript