Mahabharata 4.21.6

वैशंपायन उवाच · vaiśaṃpāyana uvāca

तथा तौ कथयित्वा तु बाष्पमुत्सृज्य दुःखितौरात्रिशेषं तदत्युग्रं धारयामासतुर्हृदा

tathā tau kathayitvā tu bāṣpamutsṛjya duḥkhitaurātriśeṣaṃ tadatyugraṃ dhārayāmāsaturhṛdā

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