Diriwayatkan oleh at-Tabrani di dalam al-Awsat dari Abu Hurairah r.a berkata bahawa Rasulullah s.a.w telah bersabda: “Aku adalah orang Arab, al-Quran adalah berbahasa Arab dan bahasa ahli syurga adalah bahasa Arab”. Al-Albani menyebut di dalam Silsilah al-Do’iefah no. 161 bahawa hadith ini adalah palsu.
From the Quran and Sunnah, there is only one hadith above that say that the language of the people of paradise is Arabic. but it has been classified as false by Sheikh Al Albani.
My Opinion
Regardless of whatever language is used in heaven, it is not of our concern as we should be concern of trying our best to enter Jannah by doing more deeds solely for Allah. and if really it is Arabic that is going to be used, Allah can just simply make everyone can speak Arabic. but it is an added advantage for one to learn Arab as it is a tool for the person to understand the Quran and Hadith in more advance stage.