Garudapurana 3.15.18

3.15.18

tato harirjagṛhe śrīvapuśca yanmohinīti pravadanti loke /
udvṛttānāṃ ditijānāṃ mahātmā samyakteṣāṃ vañcayituṃ harirbalam //

Then Hari assumed a splendid female form, whom people in the world call Mohinī, / being the great-souled one, Hari, in order to thoroughly deceive the power of the unruly sons of Diti.