From Sahih Bukhari (Hadith 4815):
Narrated `Urwa bin Az-Zubair:I asked `Abdullah bin `Amr bin Al-`As to inform me of the worst thing the pagans had done to Allah's Apostle. He said: "While Allah's Messenger (ﷺ) was praying in the courtyard of the Ka`ba, `Uqba bin Abi Mu'ait came and seized Allah's Messenger (ﷺ) by the shoulder and twisted his garment round his neck and throttled him severely. Abu Bakr came and seized `Uqba's shoulder and threw him away from Allah's Apostle and said, "Would you kill a man because he says: 'My Lord is Allah,' and has come to you with clear Signs from your Lord?
Reference: Bukhari 4815