(78) باب فِي الرَّجُلِ يُنَادِي بِالشِّعَارِ
Samurah bin Jundub said "The war-cry of the Emigrants was 'Abd Allah and that of the helpers 'Abd Al Rahman."
Reference: Sunan Abi Dawud 2595
In-book reference: Book 15, Hadith 119
English translation: Book 14, Hadith 2589