Mahabharata 10.14.6
देवताभ्यो नमस्कृत्य गुरुभ्यश्चैव सर्वशःउत्ससर्ज शिवं ध्यायन्नस्त्रमस्त्रेण शाम्यताम्
devatābhyo namaskṛtya gurubhyaścaiva sarvaśaḥutsasarja śivaṃ dhyāyannastramastreṇa śāmyatām
Our plain-language meaning of this verse is waiting for scholar review.
Open in the book