Yoga Sutras of Patanjali 2.10

ते प्रतिप्रसवहेयाः सूक्ष्माः ॥

te pratiprasava-heyah sukshmah

These subtle afflictions are to be overcome by tracing them back to their origin.

ये सूक्ष्म क्लेश प्रति-प्रसव (कारण में लौटाने) से त्याज्य हैं।