Vaisesika Sūtras
Vaisesika Sūtra 7.2.16
निष्क्रियत्वात् ॥१६॥
niṣkriyatvāt ॥16॥
[निष्क्रियत्वात् (niṣkriyatvāt) - due to inactivity;]
Due to inactivity.