Sahih al-Bukhari, Volume 5, Book 59, Hadith 435 (USC-MSA) ⓘ
Narrated Sulaiman bin Surd: On the day of Al-Ahzab (i.e. clans) the Prophet said, (After this battle) we will go to attack them(i.e. the infidels) and they will not come to attack us."
حَدَّثَنَا أَبُو نُعَيْمٍ، حَدَّثَنَا سُفْيَانُ، عَنْ أَبِي إِسْحَاقَ، عَنْ سُلَيْمَانَ بْنِ صُرَدٍ، قَالَ قَالَ النَّبِيُّ صلى الله عليه وسلم يَوْمَ الأَحْزَابِ " نَغْزُوهُمْ وَلاَ يَغْزُونَنَا " .
also referenced under: Book 64, Hadith 153 (In-Book) & Hadith 4109 (DarusSalam)