The Messenger of Allah ﷺ said to them one day, "I am riding out to the Jews. Whoever wishes may come along with me. If they greet you, say, 'And upon you.'"So we set out, and when we came to them and they greeted us, we replied, "And upon you."
قال رسول الله ﷺ لهم يوما: إني راكب إلى يهود فمن انطلق معي فإن سلموا عليكم فقولوا: وعليكم فانطلقنا فلما جئناهم وسلموا علينا فقلنا وعليكم.
Ahmad (27235) narrated it, and this is his wording, and Nasai in Al-Kubra (10148) narrated an abridged version, through several routes from Abdul-Hameed bin Jafar, who said, Yazid bin Abu Habib told me, from Marthad bin Abdullah, from Abu Basra Ghifari, and he related it. Its chain is hasan because of Abdul-Hameed bin Jafar, for he is truthful.Ahmad (27226) also narrated it through the route of Ibn Lahia, who said, Yazid bin Abu Habib told us, from Abu Khayr, that is, Marthad bin Abdullah, who said, I heard Abu Basra, and he related something similar, in abridged form. It contains an addition, "So do not initiate the greeting of peace with them." Ibn Lahia is subject to well known criticism.As for what has been narrated, in abridged form, on the authority of Abu Abdul-Rahman Juhani with similar wording, this is a mistake. It was narrated by Ahmad (17295, 18045), Ibn Majah (3699), and Tirmidhi in Ilal al-Kabir (2/862), through several routes from Ibn Ishaq, who said, Yazid bin Abu Habib told me, from Marthad bin Abdullah Yazani, from Abu Abdul-Rahman Juhani, and he related it. Muhammad bin Ishaq erred in this, as Bukhari, Tirmidhi, and others have stated, and what is correct is that it is from the hadith of Abu Basra, whose name was Jameel bin Basra.Abu Abdul-Rahman Juhani was a companion who settled in Egypt, and I have not been able to find his actual name. Abu Khayr, Marthad bin Abdullah Yazani, narrated two hadiths from him, one of which is this one, except that Ibn Ishaq erred in it by attributing it to him, and the correct attribution is as stated above.Among the Banu Juhayna was Uqba bin Amir, whose kunya was Abu Hammad, though it has also been said Abu Usayd, Abu Asad, Abu Amr, Abu Saad, Abu Aswad, Abu Ammar, and Abu Amir. This is how Ibn Abdul-Barr recorded him, and he did not mention that his kunya was Abu Abdul-Rahman, so it appears he is someone other than him.However, Uqba bin Amir also resided in Egypt, and he was a governor over it, and he built a house there, and he died in the latter part of Muawiya's caliphate. So some scholars have thought that the two of them are one and the same person, because the hadith of Abu Abdul-Rahman Juhani mentioned above is recorded in Musnad Ahmad within the collection of hadiths of Uqba bin Amir, which begins at number 17291 and ends at number 17461, and within it the hadith collection of Abu Abdul-Rahman Juhani (17295) is interspersed. So did Imam Ahmad hold the view that he was Uqba bin Amir, and that his kunya was Abu Abdul-Rahman? And Allah knows best.