Jñāneśvarī (commentary on the Bhagavadgītā) 4.118

4.118

taiśīṃ vidhividhāna vihiteṃ |
jarī ācare to samasteṃ |
tarī tiyeṃ aikyabhāveṃ aikyāteṃ |
pavatīci gā ||

so too, though he may perform / all the prescribed rites and injunctions, / they surely attain union [with Brahman] / through the state of oneness, O friend!