It is narrated from Sayyiduna Abu Hurayrah (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "By the One in whose hand is my soul, whenever Allah Almighty revealed any revelation to a Prophet between Himself and him, it was only in Arabic; then that Prophet would afterwards convey it to his people in their own language."
Only Sulayman bin Arqam (may Allah have mercy on him) narrated this hadith from Imam al-Zuhri (may Allah have mercy on him), and Abbas bin Fadl (may Allah have mercy on him) is alone in narrating it from him.
Hadith Referenceالمعجم الأوسط / باب العين / 4635
Hadith Gradingمحدثین:إسناده ضعيف لضعف سليمان بن أرقم
Hadith Takhrij«قال الهيثمي: فيه سليمان بن أرقم وهو ضعيف «مجمع الزوائد ومنبع الفوائد، ج 10، ص 53»» «قال ابن عدي: عامة ما يرويه سليمان بن أرقم لا يتابع عليه «الكامل في الضعفاء، ج 4، ص 232»»