Matsya Purana 273.31

273.31

aśaraṇyāḥ paritrastāḥ saṅkaṭaṃ ghoramāśritāḥ.
saritparvatavāsinyo bhaviṣyantyakhilāḥ prajāḥ .. 273.30

Unprotected by anyone, always living in terror, surrounded by deep difficulties, the entire population will begin to live on (the top of) mountains and on the banks of rivers.—30

When the royal families will be destroyed, the people, will desert their homes, and devoid of affection they will abandon their brothers and friends, and will have no one to protect them.—31