Surya Siddhanta
गुणकर्मविभागेन सृष्ट्वा प्राग्वद् अनुक्रमात् । विभागम् कल्पयामास यथास्वम् वेददर्शनात् ॥
Having created the divisions according to (their) functions and characteristics successively as stated before, (he) made the divisions according to the rules stated in the Vedas.
english translation