The leader of Khuza said, "O Allah, I call upon Muhammad to honor the ancient pact between our father and his. Grant victory, may Allah guide you, a firm and ready victory, and summon the servants of Allah to come as reinforcements."
أن قائد خزاعة قال: اللهم إني ناشد محمدا حلف أبينا وأبيه الأتلدا فانصر هداك الله نصرا أعتدا وادع عباد الله يأتوا مددا.
Bazzar narrated it in Kashf Astar (1817) from Abdul-Wahid bin Ghiyath, who reported, Hammad bin Salama informed us, from Muhammad bin Amr, from Abu Salama, from Abu Hurairah, and he related it. Its chain is hasan because of Muhammad bin Amr, who is Ibn Alqama Laythi, for his hadith is hasan. Haythami also graded it hasan in Majma (6/162).On this subject there is also a report from Ayesha, who said, "I saw the Messenger of Allah ﷺ angry over the matter concerning Banu Kaab with an anger I had not seen from him in a long time." He said, "May Allah not help me if I do not help Banu Kaab." She said, and he said to me, "Tell Abu Bakr and Umar to prepare for this expedition." She said, so they came to Ayesha and said, "Where does the Messenger of Allah ﷺ intend to go?" She said, "I saw him angry over the matter concerning Banu Kaab with an anger I had not seen from him in a long time."Haythami said in Majma (6/161–162), Abu Yaala narrated it from Hizam bin Hisham bin Habish, from his father, from her. Ibn Hibban deemed him trustworthy, and the rest of his narrators are the narrators of sahih.I say, Hizam bin Hisham bin Habish, Abu Hatim said of him, "An elder whose standing is one of truthfulness," in Jarh wa Tadil (3/298). But his father, Hisham bin Habish, is unknown, for his son alone narrated from him. Ibn Abu Hatim mentioned him in Jarh wa Tadil (9/53) and said nothing about him, so he counts among the unknown narrators. As for Ibn Hibban, he mentioned him among the trustworthy, following his usual practice of affirming the trustworthiness of unknown narrators.A version of similar meaning has been narrated at length from Maymuna bint Harith, mother of the believers. Tabarani narrated it in Kabir (4/433–434), but it contains Yahya bin Sulayman bin Nadla Madani, whom Haythami deemed daif in Majma (6/164).