Hiranyakeshigrihyasutra 1.2.5.11

1.2.5.11

athāsya daikṣaṇena hastena dakṣiṇamaṃsamuparyuparyanvavamṛśya hṛdayadeśamabhimṛśati \ mama hṛdaye hṛdayaṃ te astu mama cittaṃ cittenānvehi \ mama vācamekamanā juṣasva bṛhaspatistvā niyunaktu mahyam \ māmevānusaṃrabhasva mayi cittāni santu te \ mayi sāmīcyamastu te mahyaṃ vācaṃ niyacchatāt \ iti \11\

Then (the teacher) gradually moves his right hand down over (the boy's) right shoulder and touches the place of his heart with (the formulas), 'Thy heart shall dwell in my heart; my mind thou shalt follow with thy mind; in my word thou shalt rejoice with all thy heart; may Brihaspati join thee to me!
'To me alone thou shalt adhere. In me thy thoughts shall dwell. Upon me thy veneration shall be bent. When I speak, thou shalt be silent.'