Mahabharata 1.99.21

ततस्तस्मिन्प्रतिज्ञाते भीष्मेण कुरुनन्दनकृष्णद्वैपायनं काली चिन्तयामास वै मुनिम्

tatastasminpratijñāte bhīṣmeṇa kurunandanakṛṣṇadvaipāyanaṃ kālī cintayāmāsa vai munim

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