It has already been mentioned that some of the Jinn are Muslims, and others infidels. The good Jinn acquit themselves of the imperative duties of religion, namely, prayers, alms-giving, fasting during the month of Ramaḍán, and pilgrimage to Mekkeh and Mount ´Arafát; but in the performance of these duties they are generally invisible to human beings.[48] It has been stated, that, by means of talismans, or certain invocations, men are said to obtain the services of Jinn; and the manner in which the latter are enabled to assist magicians, by imparting to them the knowledge of future events, has been explained above. No man ever obtained such absolute power over the Jinn as Suleymán Ibn Dáood (Solomon, the son of David). This he did by virtue of a most wonderful talisman, which is said to have come down to him from heaven. It was a seal-ring, upon which was engraved "the most great name" of God, and was partly composed of brass and partly of iron. With the brass he stamped his written commands to the good Jinn; with the iron (for the reason before mentioned, p. 36), those to the evil Jinn or Devils. Over both orders he had unlimited power; as well as over the birds and the winds,[49] and, as is generally said, over the wild beasts. His Wezeer, Áṣaf the son of Barkhiyà, is also said to have been acquainted with "the most great name," by uttering which, the greatest miracles may be performed,--even that of raising the dead. By virtue of this name engraved on his ring, Suleymán compelled the Jinn to assist in building the Temple of Jerusalem, and in various other works. Many of the evil Jinn he converted to the true faith, and many others of this class, who remained obstinate in infidelity, he confined in prisons. He is said to have been monarch of the whole earth. Hence, perhaps, the name of Suleymán is given to the universal monarchs of the preadamite Jinn; unless the story of his own universal dominion originated from confounding him with those kings.