Saura is a religion and denomination of Hinduism, originating as a Vedic tradition. Followers of Saura worship Surya as the Saguna Brahman. At present the Sauras are a very small movement, much smaller than other larger denominations such as Vaishnavism or Shaivism. There was a rapid decline of the Sauras in the 12th and 13th century CE.
Surya worship
Saura followers worship Surya as the Saguna Brahman. The worship of Surya has been mentioned in the Ramayana and the Mahabharata. Adi Shankara included Surya into the forms of Brahman worshipped by the Smartas.
References
Saura (Hinduism) Wikipedia(Text) CC BY-SA