Bhagavad Gita 6.45

प्रयत्नाद्यतमानस्तु योगी संशुद्धकिल्बिषः।अनेकजन्मसंसिद्धस्ततो याति परां गतिम् ॥६.४५॥

prayatnādyatamānastu yogī saṃśuddhakilbiṣaḥanekajanmasaṃsiddhastato yāti parāṃ gatim

But the Yogi who strives assiduously, purified of sins and perfected gradually over many births, reaches the highest goal.

गीता