Yōga Sūtra 4.02

जात्यन्तरपरिणामः प्रकृत्यापूरात्।

jātyantarapariṇāmaḥ prakr̥tyāpūrāt।

[जात्यन्तर परिणामः प्रकृत्या पूरात्।
jātyantara = due to birth; pariṇāmaḥ = effects; prakr̥tyā = by nature; pūrāt = fulfilled;]

Effects due to birth are fulfilled by nature.