Vijnana Bhairava Tantra Verse 114

Sanskrit

सङ्कोचं कर्णयोः कृत्वा ह्यधोद्वारे तथैव च।
अनच्कमहलं ध्यायन् विशेद् ब्रह्म सनातनम्॥ ११४॥

Transliteration

saṅkocaṁ karṇayoḥ kṛtvā hyadhodvāre tathaiva ca |
anackamahalaṁ dhyāyan viśed brahma sanātanam || 114 ||

Translation

Contracting (or closing) the openings of the ears and also the lower opening (reproductive/excretory organs) in the same way, and then meditating on the palace of the anahad (unstruck) sound within, one enters the eternal Brahma.