Verse 6

पुरा कतिपयान्येव भुक्त्वा जन्मानि राघव ।अस्मिञ्जन्मनि यो मुक्तस्तस्माद्राजससात्त्विकः

In plain words

Having lived through, O Rāghava, only a few births before this one, he who wins liberation in this very birth is, for that reason, sāttvika mingled with rajas.