Mahabharata 6.103.18

सोऽहमेवं गते कृष्ण निमग्नः शोकसागरेआत्मनो बुद्धिदौर्बल्याद्भीष्ममासाद्य संयुगे

so'hamevaṃ gate kṛṣṇa nimagnaḥ śokasāgareātmano buddhidaurbalyādbhīṣmamāsādya saṃyuge

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