Urwa bin Zubayr reported,
I said to Abdullah bin Amr bin As, "Tell me about the worst thing the polytheists did to the Messenger of Allah ﷺ."He said, "While the Messenger of Allah ﷺ was praying in the courtyard of the Kaabah, Uqba bin Abu Muayt came up, grabbed the Prophet's ﷺ shoulder, twisted his garment around his neck, and choked him violently with it. Abu Bakr 
came, seized Uqba's shoulder, pushed him away from the Messenger of Allah ﷺ, and said, 'Would you kill a man for saying, My Lord is Allah, when he has brought you clear proofs from your Lord?' [Ghafir 40:28]"
Ahmad 6908
Sahihحدثنا علي بن عبد الله حدثنا الوليد بن مسلم حدثني الأوزاعي حدثني يحيى بن أبي كثير حدثني محمد بن إبراهيم بن الحارث التيمي
حدثني عروة بن الزبير قال
قلت لعبد الله بن عمرو بن العاص أخبرني بأشد شيء صنعه المشركون برسول الله ﷺ قال بينا رسول الله ﷺ يصلي بفناء الكعبة إذ أقبل عقبة بن أبي معيط فأخذ بمنكب النبي ﷺ ولوى ثوبه في عنقه فخنقه به خنقا شديدا فأقبل أبو بكر رضي الله عنه فأخذ بمنكبه ودفعه عن رسول الله ﷺ وقال {أتقتلون رجلا أن يقول ربي الله وقد جاءكم بالبينات من ربكم}
Its isnad is sahih. Ali bin Abdullah is Ibn Madini, the Imam and Hafiz, the teacher of Bukhari. He was a contemporary of Imam Ahmad and narrated from him as peers narrate from one another, and some of his narrations from him have already been mentioned at 2248 and 5437.Bukhari related this hadith at 426 from Ibn Madini with this isnad. He also related it at 7:34 from Muhammad bin Yazid Kufi, and also related it at 7:127-128 from Ayyash bin Walid, both of them from Walid bin Muslim, with this same wording. Bukhari said following Ayyash's narration, "Ibn Ishaq corroborated him, he said, Yahya bin Urwa narrated to me from Urwa, I said to Abdullah bin Amr." The corroboration of Ibn Ishaq that Bukhari refers to will come in a longer narration at 7036.This hadith, as narrated by Walid bin Muslim from Uzai, was mentioned by Ibn Kathir in his Tafsir at 282, citing it from Bukhari's narration from Ibn Madini. He also mentioned it in his Tarikh at 3:45-46, citing it from Bukhari's narration from Ayyash bin Walid. He said in the Tarikh, "Bukhari related it alone," meaning apart from Sahih Muslim. None of the authors of the six books related it except Bukhari, as is clear from Dhakhair al-Mawarith at 4535.