Bhagavatapurana 6.9.10

6.9.10

rajorūpeṇa tāsvaṃho māsi māsi pradṛśyate /
dravyabhūyovareṇāpasturīyaṃ jagṛhurmalam //

10. The sin in relation to them is seen in the form of monthly discharges; waters accepted a fourth of the sin along with the boon of their increasing the volume or quantity of the substance with which they are mixed (the boon of becoming increased in volume when mixed with other liquids) [D. predominence among the five Bhutas.]