Islam swept the entire Arabian region in the 7th century, overturning the idol worshippers. With the spread of Islam in Qatar, Prophet Mohammad (Peace be upon him) sent his first envoy Al Ala Al-Hadrami to Al-Mundhir Ibn Sawa Al-Tamimi, the ruler of Bahrain, which extended the coast from Kuwait to the south of Qatar including al-Hasa and Bahrain Islands, in the year 628, inviting him to accept Islam. Mundhir, responding to the Prophet’s call, announced his conversion to Islam and all the Arab inhabitants of Qatar including some Persians living in Qatar also became Muslims, heralding the beginning of the Islamic era in Qatar. Consequently, Al Ala Al-Hadrami was appointed by the Prophet as his representative in Bahrain to collect the Jizya (religious tax). During this early phase of Islam Qatar was famous for the robes which were woven there and exported to the various places. It is said that the Prophet have worn a Qatari robe, as did his wife Aisha. Omar Ibn Al-Khattab had a Qatari cloak patched with feather.