Which religion is the guru grath sahib?

Guru Granth Sahib is the holy scripture of Sikhism, a monotheistic religion that originated in the Punjab region of the Indian subcontinent. The Guru Granth Sahib is considered the eternal Guru and the living embodiment of the ten Sikh Gurus. It was compiled by the fifth Sikh Guru, Guru Arjan, and completed in 1604. The Granth Sahib is written in Gurmukhi script and contains the teachings of the Sikh Gurus, as well as compositions of saints from different religions and backgrounds. It is considered to be the ultimate authority in Sikhism and is revered as a living Guru by Sikhs.