Mahabharata 13.14.131
गुह्यमस्त्रं परं चापि तत्तुल्याधिकमेव वायत्तच्छूलमिति ख्यातं सर्वलोकेषु शूलिनः
guhyamastraṃ paraṃ cāpi tattulyādhikameva vāyattacchūlamiti khyātaṃ sarvalokeṣu śūlinaḥ
Our plain-language meaning of this verse is waiting for scholar review.
Open in the book