Skandapurana 6.3.1.21

6.3.1.21

anyadvā tatkimatrāha purāṇe yanna dṛśyate .
vedāḥ pratiṣṭhitāḥ pūrvaṃ purāṇe nātra saṃśayaḥ .. 1.21 ..

or what else is there in this world that is not seen in the Purāṇa? / Formerly, the Vedas were established in the Purāṇa; there is no doubt about this. (1.21)