Madhvaon Brahma Sūtra 1.4.23
Dvaita Vedānta
Numbered 1.4.24 in this text
Sūtra
प्रकृतिश्च प्रतिज्ञादृष्टांतानुपरोधात्
prakṛtiśca pratijñādṛṣṭāṃtānuparodhāt
Sūtra translation
The Lord is also called Prakriti, agreeably to the argument and illustrative instances.
“ Verily this Person alone all the names declare; just as all the rivers going to the sea, flow towards and enter it, so do all names enter and declare the Perfect Being. ” Thus agreeably to the argument and the illustration given (in the above text), the same Lord is (to be taken as) necessarily denoted by the word Prakriti also.