Islam, which originated in the Hejaz located in modern-day Saudi Arabia, is the second largest and most widely-spread religion in Asia with at least 1 billion Muslims constituting around 23.8% of the total population of Asia.
ɪslˈɑːm, wˌɪtʃ ɚɹˈɪdʒᵻnˌeɪɾᵻd ɪnðə hˈɛdʒæz loʊkˈeɪɾᵻd ɪn mˈɑːdɚndˈeɪ sˈaʊdi ɚɹˈeɪbiə, ɪz ðə sˈɛkənd lˈɑːɹdʒɪst ænd mˈoʊst wˈaɪdlispɹˈɛd ɹᵻlˈɪdʒən ɪn ˈeɪʒə wɪð æt lˈiːst wˈʌn bˈɪliən mˈʊzlɪmz kˈɑːnstɪtˌuːɾɪŋ ɚɹˈaʊnd twˈɛnti θɹˈiː.ˈeɪt pɚsˈɛnt ʌvðə tˈoʊɾəl pˌɑːpjʊlˈeɪʃən ʌv ˈeɪʒə.