Harivamsha 3.109

3.109

yathoktaṃ vai maghavatā tathaiva maruto 'bhavan
mā rodīr iti yac chabdas tvayoktaḥ pākaśāsana |
maruto nāma teneme bhavantu yadi manyase |
devāsureṣu yuddheṣu bhṛtyās tava kṛte vibho |
pṛṣṭhato 'nugamiṣyanti vaśagās te puraṃdara ||
evaṃ bruvāṇāṃ tāṃ devīṃ prāha śakras tv idaṃ vacaḥ |
devā ekonapañcāśat sahāyā vajrapāṇinaḥ //

Just as Maghavan had spoken, so indeed the Maruts came to be.
'Since the word "Do not weep!" (mā rodīḥ) was spoken by you, O Pākaśāsana,
let these be called the Maruts, if you think fit.
In the battles between gods and asuras, they will be your servants, O lord;
they will follow behind you, obedient to your will, O Pākaśāsana.'
To the goddess who was speaking thus, Śakra addressed this word:
'The forty-nine gods shall be the companions of the thunderbolt-handed one.'