Jerusalem, as instructed by Muhammad, and turning their backs on the pagan associations of the Kabah. Alfred Guillaume, in his translation of the Ibn Ishaq's seerah, says that the Kaaba itself might be referred to in the feminine form. Circumambulation was often performed naked by men and almost naked by women. It is disputed whether Allah and Hubal were the same deity or different. According to a hypothesis by Uri Rubin and Christian Robin, Hubal was only venerated by Quraysh and the Kaaba was first dedicated to Allah, a supreme god of individuals belonging to different tribes, while the pantheon of the gods of Quraysh was installed in the Kaaba after they conquered Mecca a century before Muhammad's time. Imoti contends that there were numerous such Kaaba sanctuaries in Arabia at one time, but this was the only one built of stone. The others also allegedly had counterparts of the Black Stone. There was a "Red Stone", in the Kaaba of the South Arabian city of Ghaiman; and the "White Stone" in the Kaaba of al-Abalat (near modern-day Tabala). Grunebaum in Classical Islam points out that the experience of divinity of that period was often associated with the fetishism of stones, mountains, special rock formations, or "trees of strange growth." Armstrong further says that the Kaaba was thought to be at the center of the world, with the Gate of Heaven directly above it. The Kaaba marked the location where the sacred world intersected with the profane; the embedded Black Stone was a further symbol of this as a meteorite that had fallen from the sky and linked heaven and earth. According to Sarwar, about 400 years before the birth of Muhammad, a man named 'Amr bin Luhayy, who descended from Qahtan and was the king of Hijaz, placed an idol of Hubal on the roof of the Kaaba. This idol was one of the chief deities of the ruling Quraysh tribe. The idol was made of red agate and shaped like a human, but with the right hand broken off and replaced with a golden hand. When the idol was moved inside the Kaaba, it had seven arrows in front of it, which were used for divination. To maintain peace among the perpetually warring tribes, Mecca was declared a sanctuary where no violence was allowed within of the Kaaba. This combat-free zone allowed Mecca to thrive not only as