Mahabharata 1.47.13

इदं चासीत्तत्र पूर्वं सर्पसत्रे भविष्यतिनिमित्तं महदुत्पन्नं यज्ञविघ्नकरं तदा

idaṃ cāsīttatra pūrvaṃ sarpasatre bhaviṣyatinimittaṃ mahadutpannaṃ yajñavighnakaraṃ tadā

Our plain-language meaning of this verse is waiting for scholar review.