BG 2.13: Just as the embodied soul continuously passes from childhood to youth to old age, similarly, at the time of death, the soul passes into another body. The wise are not deluded by this.
BG 2.47: You have a right to perform your prescribed duties, but you are not entitled to the fruits of your actions. Never consider yourself to be the cause of the results of your activities, nor be attached to inaction.