Sahih Muslim
Sahih Muslim 1774 b
The Prophet (saws) wrote to the Kings of the Kuffar, inviting them to Islam
Arabic hadith text
وَحَدَّثَنَاهُ مُحَمَّدُ بْنُ عَبْدِ اللَّهِ الرُّزِّيُّ، حَدَّثَنَا عَبْدُ الْوَهَّابِ بْنُ عَطَاءٍ، عَنْ سَعِيدٍ، عَنْ قَتَادَةَ، حَدَّثَنَا أَنَسُ بْنُ مَالِكٍ، عَنِ النَّبِيِّ صلى الله عليه وسلم . بِمِثْلِهِ وَلَمْ يَقُلْ وَلَيْسَ بِالنَّجَاشِي الَّذِي صَلَّى عَلَيْهِ النَّبِيُّ صلى الله عليه وسلم .
Translation
The tradition has been narrated on the authority of Anas b. Malik (the same narrator) through a different chain of transmitters, but this version does not mention
" And he was not the Negus for whom the Prophet (ﷺ) had said the funeral prayers."