(16) باب الدَّلِيلِ عَلَى زِيَادَةِ الإِيمَانِ وَنُقْصَانِهِ
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.
Reference: Sunan Abi Dawud 4684
In-book reference: Book 42, Hadith 89
English translation: Book 41, Hadith 4667