Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
bayhaqi:20430ʿAlī b. Muḥammad b. ʿAbdullāh b. Bishrān > Ismāʿīl b. Muḥammad al-Ṣaffār > Aḥmad b. Manṣūr > ʿAbd al-Razzāq > Maʿmar > al-Zuhrī > ʿUbaydullāh b. ʿAbdullāh b. ʿUtbah > Ibn ʿAbbās

[Machine] "The Messenger of Allah ﷺ wrote to Heraclius, the great ruler of the Romans, saying: 'Peace be upon those who abide by guidance.' Abdul Razzaq reported that Ibn Abbas did not differ with him in this matter."  

البيهقي:٢٠٤٣٠أَخْبَرَنَا عَلِيُّ بْنُ مُحَمَّدِ بْنِ عَبْدِ اللهِ بْنِ بِشْرَانَ أنبأ إِسْمَاعِيلُ بْنُ مُحَمَّدٍ الصَّفَّارُ ثنا أَحْمَدُ بْنُ مَنْصُورٍ ثنا عَبْدُ الرَّزَّاقِ عَنْ مَعْمَرٍ عَنِ الزُّهْرِيِّ عَنْ عُبَيْدِ اللهِ بْنِ عَبْدِ اللهِ بْنِ عُتْبَةَ عنِ ابنِ عَبَّاسٍ ؓ أَنَّ

رَسُولَ اللهِ ﷺ كَتَبَ إِلَى هِرَقْلَ عَظِيمِ الرُّومِ سَلَامٌ عَلَى مَنِ اتَّبَعَ الْهُدَى قَالَ عَبْدُ الرَّزَّاقِ وَلَمْ يُجَاوِزْ بِهِ ابْنُ عَبَّاسٍ فِي هَذَا الْمَوْضِعِ