Mahabharata 1.208.13

का वै त्वमसि कल्याणि कुतो वासि जलेचरीकिमर्थं च महत्पापमिदं कृतवती पुरा

kā vai tvamasi kalyāṇi kuto vāsi jalecarīkimarthaṃ ca mahatpāpamidaṃ kṛtavatī purā

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