Mahabharata 2.35.1

वैशंपायन उवाच · vaiśaṃpāyana uvāca

ततो युधिष्ठिरो राजा शिशुपालमुपाद्रवत्उवाच चैनं मधुरं सान्त्वपूर्वमिदं वचः

tato yudhiṣṭhiro rājā śiśupālamupādravatuvāca cainaṃ madhuraṃ sāntvapūrvamidaṃ vacaḥ

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