http://www.hinduwebsite.com/hinduism/hinduism-and-diversity.asp this above url mentions that:
The Vedas are considered supreme and inviolable. However, not all Hindu traditions hold them with the same esteem. Followers of certain Tantra and Shakta etc. traditions recognize Agama and other Saiva texts as supreme instead of the Vedas.
Now my question is that: please tell the exact verse number of the sectarian scriptures of those sects of tantra and shakta etc. traditions in which there is any 'explicitly written reference' in their scriptures, which says that - "their sectarian literature has more canonical pramana/authority than veda".