"Say (O Muḥammad pbuh), 'O people of the Scripture (Jews and Christians)! Come to a word that is just between us and you, that we worship none but Allah..." (V.3:64)

Sahih al-Bukhari · Book 65 · Hadith 4553

حَدَّثَنِي إِبْرَاهِيمُ بْنُ مُوسَى، عَنْ هِشَامٍ، عَنْ مَعْمَرٍ،‏.‏ وَحَدَّثَنِي عَبْدُ اللَّهِ بْنُ مُحَمَّدٍ، حَدَّثَنَا عَبْدُ الرَّزَّاقِ، أَخْبَرَنَا مَعْمَرٌ، عَنِ الزُّهْرِيِّ، قَالَ أَخْبَرَنِي عُبَيْدُ اللَّهِ بْنُ عَبْدِ اللَّهِ بْنِ عُتْبَةَ، قَالَ حَدَّثَنِي ابْنُ عَبَّاسٍ، قَالَ حَدَّثَنِي أَبُو سُفْيَانَ، مِنْ فِيهِ إِلَى فِيَّ قَالَ انْطَلَقْ…

Narrated Ibn `Abbas: Abu Sufyan narrated to me personally, saying, "I set out during the Truce that had been concluded between me and Allah's Messenger. While I was in Sham, a letter sent by the Prophet (ﷺ) was brought…