Salok
Mardana also wrote poetry. One of his compositions appears in the Guru Granth Sahib in Bihdgare ki Var along with two others of Guru Nanak's addressed to Mardana. As per the composition Mardana is convinced that an evil body may be cleansed of sin in sangat (GG, 553).
Read more about this topic: Bhai Mardana