Mahabharata 12.74.27

पापस्य लोको निरयोऽप्रकाशो; नित्यं दुःखः शोकभूयिष्ठ एवतत्रात्मानं शोचते पापकर्मा; बह्वीः समाः प्रपतन्नप्रतिष्ठः

pāpasya loko nirayo'prakāśo; nityaṃ duḥkhaḥ śokabhūyiṣṭha evatatrātmānaṃ śocate pāpakarmā; bahvīḥ samāḥ prapatannapratiṣṭhaḥ

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