Sahih Muslim, 6222

Suhail reported on the authority of Abu Huraira that Allah's Messenger (ﷺ) said on the Day of Khaibar:I shall certainly give this standard in the hand of one who loves Allah and his Messenger and Allah will grant victory at his hand. Umar b. Khattab said: Never did I cherish for leadership but on that day. I came before him with the hope that I may be called for this, but Allah's Messenger (ﷺ) called 'Ali b. Abu Talib and he conferred (this honour) upon him and said: Proceed on and do not look about until Allah grants you victory, and 'Ali went a bit and then halted and did not look about and then said in a loud voice: Allah's Messenger, on what issue should I fight with the people? Thereupon he (the Prophet) said: Fight with them until they bear testimony to the fact that there is no god but Allah and Muhammad is his Messenger, and when they do that then their blood and their riches are inviolable from your hands but what is justified by law and their reckoning is with Allah

Rapporté par Suhail, d’après Abu Huraira : Le Messager d’Allah ﷺ a dit, le jour de Khaybar : « Je remettrai ce drapeau à celui qui aime Allah et Son Messager, et Allah accordera la victoire par sa main. » Omar b. Khattab dit : « Jamais je n’ai autant désiré le commandement que ce jour-là. Je me suis avancé dans l’espoir d’être appelé, mais le Messager d’Allah ﷺ appela 'Ali b. Abi Talib, lui remit cet honneur et lui dit : “Avance et ne te retourne pas tant qu’Allah ne t’aura pas accordé la victoire.” 'Ali avança un peu, s’arrêta, puis demanda à haute voix : “Ô Messager d’Allah, contre quoi dois-je combattre les gens ?” Le Prophète ﷺ répondit : “Combats-les jusqu’à ce qu’ils témoignent qu’il n’y a de divinité qu’Allah et que Muhammad est Son Messager. S’ils le font, alors leur sang et leurs biens sont protégés, sauf ce que la loi autorise, et leur compte sera auprès d’Allah.” »