Say (O Muhammad ﺻﻠﻰ ﺍﷲ ﻋﻠﻴﻪ ﻭﺳﻠﻢ): "O mankind! Verily, I am sent to you all as the Messenger of Allâh to Whom belongs the dominion of the heavens and the earth. Lâ ilâha illa Huwa (none has the right to be worshipped but He). It is He Who gives life and causes death. So believe in Allâh and His Messenger (Muhammad ﺻﻠﻰ ﺍﷲ ﻋﻠﻴﻪ ﻭﺳﻠﻢ), the Prophet who can neither read nor write (i.e. Muhammad ﺻﻠﻰ ﺍﷲ ﻋﻠﻴﻪ ﻭﺳـﻠﻢ), who believes in Allâh and His Words [(this Qur'ân), the Taurât (Torah) and the Injeel (Gospel) and also Allâh's Word: "Be!" and he was, i.e. 'Isâ (Jesus) son of Maryam (Mary), ﻋﻠﻴﻬﻤﺎ ﺍﻟﺴﻼﻡ], and follow him so that you may be guided."
Therefore, it is Wajib on all male and female Mukallafs (persons meeting the conditions to be held legally accountable for their actions) amongst jinn and human beings, rulers and their peoples, Arabs and nonArabs to worship Allah Alone and to comply with the meaning of La ilaha illa Allah for it really means that: There is no true deity but Allah.