BHĀNĀ MALLAṆ, BHĀĪ, and Bhāī Rekh Rāo, store-keepers of the Mughal governor at Kābul, were pious and devoted Sikhs of the time of Gurū Arjan. Whatever they earned, they spent on feeding the needy Sikhs and others. Jealous of their generous hospitality, someone complained to the governor charging them with dishonesty. It was said that they used short weights and misappropriated the provisions in the stores. Bhāī Manī Siṅgh, Sikhāṅ dī Bhagat Mālā, records that the weights were in fact short, though Bhāī Bhānā and Bhāī Rekh Rāo did not know. Both were honest men and had deep faith in the Gurū. They made an ardās, supplicating the Gurū that their honour be vindicated. It is said that Gurū Arjan was on that day in a congregation at Amritsar. A Sikh made an offering of five pice. The Gurū took up the coins and, weighing them on his palm, began shifting them from one hand to the other and back again. The saṅgat was perplexed. Offerings, precious as well as humble, had always been made to the Gurū, but he had hardly ever touched them. Soon, however, Gurū Arjan dropped the coins and smiled. Asked by the Sikhs to reveal the mystery, the Gurū said that he was countervailing the weights of his innocent Sikhs in trouble. Meanwhile, the weights of Bhāī Bhānā's store had been tested and found to be correct.
Bhāī Kāhn Siṅgh Nābhā, Gurushabad Ratnākar Mahān Kosh and Bhāī Santokh Siṅgh, Srī Gur Pratāp Sūraj Granth, also mention this anecdote, but in reference to one Bhāī Kaṭārā and not to Bhāī Bhānā Mallaṇ and Bhāī Rekh Rāo.