Bhatt Gayand was a Brahmin bard in the court of Guru Arjan, whose 13 hymns are present in Guru Granth Sahib, the sacred scripture of the Sikhs.[1][2][3][4]
The hymns to Waheguru contained in the Guru Granth Sahib were composed by Bhatt Gayand.[5][6][7]
Nanak conceived of God as the one and the only 'true sovereign' (Sacha Patishah) of the world; although the term Vahiguru first found in the hymns of Bhatt Gayand, the bard contemporary of Guru Arjan (the fifth Guru), is now more commonplace and used in the Sikh salutation (Vahiguru ji ka Khalsa Vahiguru ji ki Fateh).
Gayand composed 13 swayyas in praise of the fourth Guru whom he believes to be incarnate of the Divine. His 'Wah - Wah' phrase is popularly recited by the Sikhs