Bhagavatapurana 6.9.26

6.9.26

yo naḥ sapatnairbhṛśamardyamānān devarṣitiryaṅnṛṣu nitya eva /
kṛtāvatārastanubhiḥ svamāyayā kṛtvātmasāt pāti yuge yuge ca //

26. Who, eternal as he is, makes, through His mercy and power, Avataras, (with forms assumed) among the gods, Rishis, lower animals and human beings, in every Yuga, protects us when we are badly beaten and harassed by our enemies and keeps us under His own power.