The Messenger of Allah ﷺ said on the day of Hunayn, "Slaughter them outright," and he gestured with his hand toward the throat.
أن رسول الله ﷺ قال يوم حنين: جزوهم جزا وأومأ بيده إلى الحلق.
No references are available.
Bazzar narrated it - Kashf Astar (1830) - from Walid bin Amr bin Sukayn, Muhammad bin Abdullah bin Muthanna told us, from his father, from Thumama, from Anas, who related it. Its chain is hasan because of the discussion surrounding Abdullah bin Muthanna, the father of Muhammad, that is, Abdullah bin Muthanna bin Abdullah bin Anas bin Malik Ansari, concerning whom there is disagreement, though his hadith is hasan. Haythami said in Majma (6/181), "Its narrators are trustworthy."On this subject there is also what was narrated from Abu Abdul-Rahman Fihri, who said, I was with the Messenger of Allah ﷺ during the campaign of Hunayn. We traveled on a scorchingly hot day, then stopped to rest in the shade of the trees. When the sun had passed its zenith, I put on my armor, mounted my horse, and went to the Messenger of Allah ﷺ, who was in his tent. I said, "Peace be upon you, Messenger of Allah, and the mercy of Allah. Messenger of Allah, is it time to move on?" He said, "Yes." Then he said, "Bilal." Bilal sprang up from beneath a samura tree whose shade had been no larger than the shade of a bird, and said, "At your service, twice over, and I am your ransom." The Prophet said, "Saddle my horse for me." A saddle was brought out with two flaps made of palm fiber, without extravagance or excess. He said, it was saddled, then he mounted, and we mounted. We lined up against them that evening and through the night, and the two forces caught sight of one another. Then the Muslims turned away in flight, just as Allah described. The Prophet ﷺ said, "O servants of Allah, I am the servant of Allah and His Messenger." Then he said, "O company of the Migrants, I am the servant of Allah and His Messenger." Then he said, then the Messenger of Allah ﷺ plunged forward from his horse, took a handful of dust, and the man who was nearer to him than I informed me that he struck their faces with it, saying, "Disgraced be these faces." So Allah put them to flight.Yaala bin Ata said, their sons told me, on the authority of their fathers, that they said, "There was not one of us left whose eyes and mouth were not filled with dust, and we heard a rattling sound between heaven and earth like the sound of iron being dragged across an iron basin."Ahmad narrated it (22468, 22467), and this is his wording, and Abu Dawud (5233) and Darimi (4252) in an abridged form, all of them through the hadith of Hammad bin Salama, Yaala bin Ata informed us, from Abu Hammam Abdullah bin Yasar, from Abu Abdul-Rahman Fihri, who related it.Abu Dawud said, "Abu Abdul-Rahman Fihri has no hadith except this one, and it is a noble hadith brought by Hammad bin Salama." I say, however its chain contains Abu Hammam Abdullah bin Yasar, of whom Ali bin Madini said, "He is an unknown shaykh," and Abu Jafar Tabari said the same. As for Ibn Hibban, he listed him among the trustworthy narrators. Furthermore, its text contains something objectionable, namely the mention of a horse for the Messenger of Allah ﷺ. In the sahih hadiths, he was on a white mule, spurring it on ahead of the disbelievers, while Abbas held the mule's bridle, unless what is meant by "horse" is the mule, since the mule descends from both the horse and the donkey.On this subject there is also what was narrated from Yazid bin Amir Suwai, who had been present at Hunayn among the polytheists before he embraced Islam. We asked him about the terror that Allah cast into the hearts of the polytheists on the day of Hunayn, how it had been. He said, "He would take a pebble for us and throw it into a basin, and it would clang." He said, "We used to feel something like that within our chests."In another version he said, at the moment when the Muslims broke and fled on the day of Hunayn, the disbelievers pursued them. The Messenger of Allah ﷺ took a handful from the ground, then turned toward the polytheists with it, and threw it into their faces, saying, "Go back, disgraced be these faces." He said, there was no one who met his brother afterward without complaining of something irritating his eye, or wiping at his eyes.Abd bin Humayd narrated it (439, 440), and Tabarani in Kabir (22/237), and Bayhaqi in Dalail (5/114), all of them through the hadith of Saeed bin Saaib Taifi, my father, Saaib bin Yasar, told me, he said, I heard Yazid bin Amir Suwai, who had been present at Hunayn, relate it. In it is Saaib bin Yasar, whom Bukhari mentioned in Tarikh al-Kabir without saying anything about him. Ibn Hibban also mentioned him among his trustworthy narrators and said, "He transmits mursal reports from Yazid." I have not found anyone else's confirmation of his reliability. As for Haythami's statement in Majma (6/183), "Its narrators are trustworthy," it rests on Ibn Hibban's assessment alone.It has also been narrated from Anas bin Malik, who said, on the day of Hunayn the people of Makkah and the people of Madinah met, and the fighting grew fierce, and they turned away in flight. The Messenger of Allah ﷺ then called out to the Ansar, saying, "O company of Muslims, I am the Messenger of Allah ﷺ." They said, "We are at your service. By Allah, we have not held back." Then they lowered their heads and fought on until Allah granted them victory.Hakim narrated it (3/48) through the hadith of Mubarak bin Fadala, Hasan told us, from Anas bin Malik, who related it. He said, "Its chain is sahih." I say, however it contains Hasan, who is the well-known Imam, a mudallis who did not state his source explicitly.