Mahabharata 3.138.15

यथाहं पुत्रशोकेन देहं त्यक्ष्यामि किल्बिषीतथा ज्येष्ठः सुतो रैभ्यं हिंस्याच्छीघ्रमनागसम्

yathāhaṃ putraśokena dehaṃ tyakṣyāmi kilbiṣītathā jyeṣṭhaḥ suto raibhyaṃ hiṃsyācchīghramanāgasam

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