sattvaśuddhisaumanasyaikāgryendriyajayātmadarśanayogyatvāni ca [YS 2.41]

bhavantīti vākyaśeṣaḥ. śuceḥ sattvaśuddhis tataḥ saumanasyaṃ tata aikāgryaṃ tata indriyajayas tataś cātmadarśanayogyatvaṃ buddhisattvasya bhavatīty etac chaucasthairyād adhigamyata iti.