Guru Arjan gave a central place of worship to the Sikhs in Harmandir Sahib. What now he wanted to be scripture for the Sikhs. So he collected from Bhai Mohan, the son of Guru Amar Das, the hymns of the first three Gurus and some Bhagats, and added to them the compositions of his father Guru Ramdas, and his own. He got the Adi Granth written by Bhai Gurdas. Guru Arjan gave the copy to Bhai Bano for binding. He took it for binding to Lahore and on the way prepared a copy. This is known as Bhai Bano’s copy. Guru Arjan got the original after binding. He installed the Guru Granth Sahib at Harmandir Sahib in 1604. Baba Buddha was appointed as its first Granthi or keeper. This copy passed into the custody of Bhai Dhirmal, son of Guru Hargobind, who refused to give it to the Guru. Subsequently, some Sikhs brought this copy to the ninth Guru who returned it to Dhirmal. It is said that Guru Gobind Singh stayed at Damdama Sahib for nine months in 1706 and dictated the whole Adi Granth to Bhai Mani Singh. Undoubtedly, the Guru expunged certain unauthorized pieces that had crept into some pirated copies and gave it a final form.