Devibhagavatapurana 5.22.23

5.22.23

himālayaṃ mahārāja devīdhyānaparāyaṇāḥ |
māyābījaṃ hṛdā nityaṃ japantaḥ sarva eva hi ||

Vyâsa said:-- O King! Hearing thus his words, the Devas departed to the Himâlayâs and they became all merged in the devotional worship of the Supreme Goddess and began to meditate constantly in their hearts the Seed mantra of Mâyâ (Hrîm). They bowed down to the Goddess Mahâ Mâyâ, the Discarder of all the fears of Her Bhaktas and began to chant hymns to Her with perfect devotion.