The Messenger of Allah ﷺ said, "Tomorrow I shall give the banner to a man who loves Allah and His Messenger, and through whose hands Allah will grant victory."Umar said, "I never desired leadership except on that day."He continued, "I stretched myself up hoping to be called for it. But the Messenger of Allah ﷺ called Ali bin Abu Talib and handed it to him, saying, 'Go forward, and do not turn back until Allah grants you victory.'"Ali walked on for a while, then stopped without turning around and called out, "Messenger of Allah, on what basis shall I fight the people?"He replied, "Fight them until they bear witness that there is no god but Allah and that Muhammad is the Messenger of Allah. If they do that, they have protected their blood and property from you, except for what is due by right, and their reckoning is with Allah."
قال رسول الله ﷺ: لأعطين الراية غدا رجلا يحب الله ورسوله، يفتح الله على يديه قال عمر: ما أحببت الإمارة إلا يومئذ قال: فتساورت لها رجاء أن أدعى لها، قال: فدعا رسول الله ﷺ علي بن أبي طالب. فأعطاه إياها. وقال: امش، ولا تلتفت حتى يفتح الله عليك. قال: فسار علي شيئا ثم وقف ولم يلتفت، فصرخ: يا رسول الله! على ماذا أقاتل الناس؟ قال: قاتلهم حتى يشهدوا أن لا إله إلا الله وأن محمدا رسول الله، فإذا فعلوا ذلك فقد منعوا منك دماءهم وأموالهم إلا بحقها، وحسابهم على الله.
Muslim reported it in the Book of Virtues (2405) from Qutayba bin Saeed, who said, Yaqub (meaning Ibn Abdul-Rahman Qari) told us, from Suhayl, from his father, from Abu Hurairah, and he related it.It was also reported from Burayda, who said, "We besieged Khaybar. Abu Bakr took the banner but victory was not granted through him. The next day Umar took it and withdrew, and victory was not granted through him either. The people that day suffered great hardship and exertion. The Messenger of Allah ﷺ said, 'Tomorrow I will hand my banner to a man who loves Allah and His Messenger, and whom Allah and His Messenger love. He will not turn back until victory is granted through him.' We spent that night with our spirits lifted, knowing that victory would come the next day. When morning came, the Messenger of Allah ﷺ prayed the dawn prayer, then stood up and called for the banner while the people were in their ranks. There was not one of us who held any standing with the Messenger of Allah ﷺ but hoped that he would be the bearer of the banner. He called for Ali bin Abu Talib, who had inflamed eyes, spat in his eyes and wiped them, and handed him the banner, and Allah granted victory through him. I was among those who stretched their necks hoping for it."Nasai reported it in Kubra (8346), and this is his wording. Ahmad reported it in the Musnad (22993) and in Fadail al-Sahabah (1009), and Bayhaqi in Dalail (4/210) and in Sunan al-Kubra (9/132), all of them through the hadith of Husayn bin Waqid, from Abdullah bin Burayda, from his father, and they related it both briefly and at length. Some of them mentioned Abu Bakr alone, some mentioned Umar alone, and some combined all three.Ahmad said, "Abdullah bin Burayda, from whom Husayn bin Waqid narrated, I do not find this objectionable, and others have deemed him reliable, but he has corroborating and supporting narrations, which themselves are not free of criticism, though they may reinforce one another. However, there is something objectionable in its text regarding the succession mentioned, Abu Bakr, then Umar, then Ali." Sheikh Islam bin Taymiya, may Allah have mercy on him, pointed to this in Minhaj Sunnah (3617), where he said, "The banner had not belonged to Abu Bakr before that, nor to Umar, and neither of them had come near it. Rather this is among the fabrications. This is why Umar said, 'I never desired leadership except on that day.'"Hafiz bin Kathir said in Bidaya wa Nihaya (6/264–267), after citing several narrations from Bayhaqi and others, "Bazzar reported, from Abbad bin Yaqub, from Abdullah bin Bukayr, from Hakeem bin Jubayr, from Saeed bin Jubayr, from Ibn Abbas, the story of the sending of Abu Bakr, then Umar, on the day of Khaybar, then the sending of Ali, and victory came at his hands. But its wording contains strangeness and objectionable elements, and its chain contains someone accused of Shiism."I say, the wording of Bazzar does not differ from the others regarding the succession, Abu Bakr, then Umar, then Ali, with Allah granting victory at his hands. As for his statement that its chain contains someone accused of Shiism, this refers to Hakeem bin Jubayr, who is indeed discarded as a narrator.Likewise, what is reported from Abu Saeed Khudri is not sound, that he said, "The Messenger of Allah ﷺ took the banner and shook it, then said, 'Who will take it with its due right?' A certain man came forward and said, 'I will,' and he said, 'Step aside.' Then another man came and he said, 'Step aside.' Then the Prophet ﷺ said, 'By the One who has honored the face of Muhammad, I will surely give it to a man who will not flee. Here, take it, O Ali.' So he set out until Allah granted him victory over Khaybar and Fadak, and he brought their dried dates and cured meat." Musab said, "their dried dates and their cured meat."Ahmad (11122) and Abu Yaala (1346) both reported it through the hadith of Israil, who said, Abdullah bin Isma Ajli told us, saying, "He heard Abu Saeed," and he related it. In it is Abdullah bin Isma, whose father's name is also said to be Isim, Abu Alwan, concerning whom there is disagreement. Ibn Main deemed him reliable, Abu Hatim said, "A minor figure," and Ibn Habban mentioned him both in Thiqat and in Majruhin, thus contradicting himself. In Majruhin he said, "His hadith is extremely objectionable given how little he narrated. He narrates from reliable narrators things that do not resemble their hadiths, to the point that one is inclined to think they are either delusions or fabrications."Hafiz bin Kathir said in Bidaya wa Nihaya (6/263), "Ahmad alone reported it (meaning among the six major collectors). Its chain is not problematic, though it contains strangeness." He then quoted Ibn Habban's statement about Ibn Isma.Likewise, what is reported from Jabir is not sound, that Ali carried the gate on the day of Khaybar until the Muslims climbed up on it and thereby conquered it, and that it was tested afterward and forty men could not lift it. Bayhaqi reported it in Dalail Nubuwwah (4/212). Its chain contains Ismail bin Musa Suddi, who is accused of holding Rafidi views, and Layth bin Abu Salim, who is daif. Hafiz bin Kathir pointed, in Bidaya wa Nihaya (6/273), to his weakness in general terms.Bayhaqi said, "It was also reported through another daif route from Jabir, that seventy men then gathered upon it, and all they managed together was to put the gate back in place."