Ābhūta-saṃplava & Loka-vibhāga
Dissolution Threshold and the Fourteen Abodes
जनस्तु पञ्चमो लोकस्तस्माज्जायन्ति वै जनाः / तासां स्वायंभुवाद्यानां प्रजानां जननाज्जनः
janastu pañcamo lokastasmājjāyanti vai janāḥ / tāsāṃ svāyaṃbhuvādyānāṃ prajānāṃ jananājjanaḥ
Janaloka is the fifth realm; from it beings are indeed born. Because it is the place of the begetting of the prajās, beginning with Svāyambhuva, it is called “Jana”.