Yoga Sūtra Chapter Three verse 15
क्रमान्यत्वं परिणामान्यतेवे हेतुः ॥१५॥
krama-anyatvaṃ pariṇāma-anyatve hetuḥ ||15||
Another sequence is the cause of another transformation.
krama - a step; progressing step by step, a particular manner or method of reading and writing Vedic texts; sequence; order; series; regular arrangement; succession; in regular course; gradually, by degreesanyatva - anotherpariṇāma - transformation into; change, alteration, development, evolutionhetu - cause, cause of; motive; reason for