Mahabharata 3.30.29
एवं संकुपिते लोके जन्म कृष्णे न विद्यतेप्रजानां संधिमूलं हि जन्म विद्धि शुभानने
evaṃ saṃkupite loke janma kṛṣṇe na vidyateprajānāṃ saṃdhimūlaṃ hi janma viddhi śubhānane
Our plain-language meaning of this verse is waiting for scholar review.