Skandapurana 2.1.22.126

2.1.22.126

iti śrīskāṃde mahāpurāṇa ekāśītisāhasryāṃ saṃhitāyāṃ dvitīye vaiṣṇavakhaṇḍe śrīveṃkaṭācalamāhātmya ākāśagaṃgāmāhātmyavarṇanaṃnāma dvāviṃśatitamo'dhyāyaḥ .. 22 ..

Thus, in the glorious Skanda Mahāpurāṇa, in the collection of eighty-one thousand verses, in the second Vaiṣṇava section, in the Veṅkaṭācalamāhātmya, the twenty-second chapter, entitled 'Description of the Glory of Ākāśagaṅgā'.