Mahabharata 12.317.27

प्राक्संप्रयोगाद्भूतानां नास्ति दुःखमनामयम्विप्रयोगात्तु सर्वस्य न शोचेत्प्रकृतिस्थितः

prāksaṃprayogādbhūtānāṃ nāsti duḥkhamanāmayamviprayogāttu sarvasya na śocetprakṛtisthitaḥ

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