Bhavishyapurana 3.74.74

Bhaviṣyapurāṇa 3.74.74

iti śrībhaviṣye mahāpurāṇe śatārddhasāhasryāṃ saṃhitāyāṃ brāhme parvaṇi saptamīkalpe
sūryadvādaśamūrtivarṇanaṃ nāma catuḥsaptatitamo'dhyāyaḥ . 74 .