KĀLAU, BHĀĪ, a Kakkā Sunār or goldsmith and a Sikh of the time of Gurū Arjan, was known for his martial skill. He once waited on the Gurū and enquired how a warrior might be saved. The Gurū, according to Bhāī Manī Siṅgh, Sikhāṅ dī Bhagat Mālā, said, "He who lays down his life in a dharam yuddh, i.e. fighting for a righteous cause, and remembers God in his last moments will attain liberation."
See Bhāī Gurdās, Vārāṅ, XI.23