Yōga Sūtras
Yōga Sūtra 3.23
सोपक्रमं निरुपक्रमं च कर्म तत्संयमादपरान्तज्ञानमरिष्टेभ्यो वा।
and by samyama on the act, its implications and non-implications one gains knowledge of death, as well as impending outcomes.