II, 3, 11

The Vedanta Sutras of Badarayana, Commentary by Sankara (SBE38), tr. by George Thibaut [1896] at sacred-texts.com

11. Water (is produced from fire).

We have to supply from the preceding Sûtra the words 'thence' and 'for thus the text declares.'--Water is produced from fire; for the text says, 'it sent forth water' (Kh. Up. VI, 2, 3), and 'from fire (sprang) water' (Taitt. Up. II, 1). These explicit statements allow no room for doubt ². The Sûtrakâra, however, having explained the creation of fire, and being about to explain the creation of

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earth, propounds this Sutra in order to insert water (and thus to point out its position in the srishtikrama).

Footnotes

22:2 So that the Sutra might possibly be looked upon as no called for.