Yoga Sūtra Chapter Two verse 8

दुःखानुशयी द्वेषः ॥८॥

duḥkha-anuśayī dveṣaḥ ||8||

Aversion is the consequence of suffering.

duḥkha - suffering, pain, sorrowfulanuśayin - consequencedveṣa - aversion, hatred. dislike, repugnance

Commentaries and Reflections

T Krishnamacharya:

What is unpleasant is not desired.
The response of the mind is then to move away from it.
Whether in fact such a step did prevent Duḥkha is not immediately evident.