Shankaracharya's commentary, trans. Alladi Mahadeva Sastry (1897)
[1]When the intellect, distracted by the conflicting injunctions of the scriptures, shall stand steady in samādhi and remain immovable — then thou shalt attain yoga.
BG 2.53
श्रुतिविप्रतिपन्ना ते यदा स्थास्यति निश्चला । समाधावचला बुद्धिस्तदा योगमवाप्स्यसि ॥
śruti-vipratipannā te yadā sthāsyati niścalā | samādhāv acalā buddhis tadā yogam avāpsyasi ||
"When your mind — shaken by conflicting teachings — stands still in samādhi: that is yoga attained."
5 translations · all pre-1928 or released to public domain · sources
When the intellect, distracted by the conflicting injunctions of the scriptures, shall stand steady in samādhi and remain immovable — then thou shalt attain yoga.
When thy understanding, tossed about by conflicting scriptures, shall stand unshakeable in samādhi, firm and unmoved — then shalt thou attain to yoga.
When thy understanding, perplexed by scripture, stands immovable and firm in samādhi, then shalt thou attain to right discernment, then to yoga.
When standing unmoved amid the strife Of these conflicting texts, thy stead-fast mind Gives true light — then, O Prince! thine eyes have seen; Then art thou come to Yog — to right, to truth!
When thy understanding, which is bewildered by the Vedic texts, will stand steady and unmoved in samādhi — then thou wilt achieve yoga.