Matsya Purana 153.57

153.57

nimirabhyapatattūrṇaṃ surasainyāni loḍayan.
yāṃ yāṃ nimigajo yāti diśaṃ tāṃ tāṃ savāhanāḥ .. 153.54

When Gajâsura was killed like that, Nimi riding on his elephant, beating his kettle drum and roaring furiously, appeared in the field of battle He looked like cloud at the time of the great dissolution and was attended by Durdhara Dânava In whichever direction Nimi appeared the Devas began to flee with horror forsaking all their arms and weapons All the elephants ran away on getting the unbearable scent of the demon's elephant —53-56