Mahabharata 12.292.20
चातुराश्रम्यपन्थानमाश्रयत्याश्रमानपिउपासीनश्च पाषण्डान्गुहाः शैलांस्तथैव च
cāturāśramyapanthānamāśrayatyāśramānapiupāsīnaśca pāṣaṇḍānguhāḥ śailāṃstathaiva ca
Our plain-language meaning of this verse is waiting for scholar review.
Open in the book