Brahma Sūtra 3.1.20

It is, moreover, observed that out of the four classes of organic beings—viviparous animals, oviparous animals, animals springing from heat, and beings springing from …

And it is seen in Scripture also, that the bodies of some beings originate independently of the fifth oblation: 'Of all beings there are …

Further, that the lowermost hell of darkness is a place of absolute misery is established by the statement in the Pâdma of Brahma’s direct …