It is well known that Padma Purana classify Puranas into three which is shown below:
- Sattva: Vishnu Purana, Bhagavata Purana, Naradeya Purana, Garuda Purana, Padma Purana, Varaha Purana
- Rajas: Brahmanda Purana, Brahma Vaivarta Purana, Markandeya Purana, Bhavishya Purana, Vamana Purana, Brahma Purana
- Tamas: Matsya Purana, Kurma Purana, Linga Purana, Shiva Purana, Skanda Purana, Agni Purana
Padma Purana also says Sattva Puranas lead one to heaven and Tamo Guna Puranas lead one to hell.
However, I heard from someone that Skanda Purana classifies 10 Shaiva Puranas as puranas with Sattva Guna and Vaishnava Puranas as puranas with Tamo Guna, so if Vaishnava Puranas contradict Shaiva Puranas, only Shaiva Puranas should be accepted as Pramana.
Is this classification really mentioned in the Skanda Purana? If yes, please provide Canto and chapter number.