guṇatrayavibhāgayoga - Verse śloka 10
śloka 10
rajastamaścābhibhūya sattvaṃ bhavati bhārata |
rajaḥ sattvaṃ tamaścaiva tamaḥ sattvaṃ rajastathā ||14-10||
Translation
O Bharata! Sometimes, overpowering (subduing) Rajas and Tamas, Sattva increases; sometimes, subduing Rajas and Sattva, Tamas increases; and sometimes, overpowering Tamas and Sattva, Rajas increases.