Explaining the verse, “say ; You have no faith, but you only say :We have submitted our wills to Allah”, Al-Zuhri said : We think that ISLAM is a word, and faith is an action.
حَدَّثَنَا مُحَمَّدُ بْنُ عُبَيْدٍ، حَدَّثَنَا ابْنُ ثَوْرٍ، عَنْ مَعْمَرٍ، قَالَ وَقَالَ الزُّهْرِيُّ { قُلْ لَمْ تُؤْمِنُوا وَلَكِنْ قُولُوا أَسْلَمْنَا } قَالَ نَرَى أَنَّ الإِسْلاَمَ الْكَلِمَةُ وَالإِيمَانَ الْعَمَلُ .
AbuDaud
Model Behavior of the Prophet (Kitab Al-Sunnah) • Hadith 4684