'In what time, having departed': the connection is with words held apart from each other. In which time the strivers go to non-return, to no rebirth, and also to its opposite, to return. By 'yogins' both yogins and doers of action are meant, the doers of action being called yogins figuratively, by the qualification 'of the yogins by the yoga of action' (Gītā 3.3). In which time the yogins who have departed, who have died, go to non-return, and in which time those who have departed go to return: that time I shall tell, O bull of the Bharatas. He states that time.
Contemporary English rendering of the Sanskrit bhāṣya, pending scholar review.