Narrated Sulaiman bin Surd: When the clans were driven away, I heard the Prophet saying, "From now onwards we will go to attack them (i.e. the infidels) and they will not come to attack us, but we will go to them."
— Sahih Bukhari, Volume 5, Book 59: Military Expeditions led by the Prophet (pbuh) (Al-Maghaazi), Hadith #436