In Singapore, there are 4 official language: English, Malay, Mandarin, Tamil.
thus Malay language is the lingua franca for Muslims.
what about i speak English in the mosque, or i speak chinese in the mosque...
speaking malay doesnt mean for bilingual language for muslim...i saw some mosque speak urdu, speak arabic...in the mosque...when giving the dakwah speech on the khutbah...in Malaysia! malay language only the national language oF malaysia...! speaking malay indonesian also national language of indonesian!
doesnt mean malay language is the lingua franca for muslims...a malay also can give speech and talk in english,urdu, arab and etc if u are clever in the language.