Bhai Bula Dhir, whose name appears in the list of prominent Sikhs in Bhai Gurdas, Varan, XI. 18, once came along with Bhai Nihalu, Bhai Tulsia and Bhai Chandia, all Dhir Khatris, to see Guru Arjan. He brought with him one question: "Whose incarnation was Guru Nanak?" The Guru, as says Bhai Santokh Singh, Sn Gur Pratap Suraj Granth, explained: "Guru Nanak was one with Brahman. He founded a unique faith. Discarding austerities, rituals and penances, he preached repetition of the True Name, and recommended charity, cleanliness and love. Give up vacillation, and concentrate your mind on the barn." Bula and his companions felt satisfied and all their doubts vanished.
1. Mani Singh, Bhai, Sikhan di Bhagat Mala. Amritsar, 1955
2. Santokh Singh, Bhai, Sri Gur Pratap Suraj Granth. Amritsar, 1926-37