YSBhā zu YS, 2, 41.1, 2.1 śuceḥ sattvaśuddhis tataḥ saumanasyaṃ tata aikāgryaṃ tata indriyajayas tataścātmadarśanayogyatvaṃ buddhisattvasya bhavatīty etac chaucasthairyād adhigamyata iti //