Narapatijayacarya 13.16

13.16

gurusaṃkrāntito varṣe māse bhāskarasaṃkramāt ||
dine vārodayādevaṃ tridhā dravyasya nirṇayaḥ ||

In a year, from Jupiter's transit; in a month, from the Sun's transit;
in a day, from the rising of the weekday lord—thus is the threefold determination of goods.