Mishkat al-Masabih
Mishkat al-Masabih 4386
وَعَنْ أَنَسٍ أَنَّ النَّبِيَّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ أَرَادَ أَنْ يَكْتُبَ إِلَى كِسْرَى وَقَيْصَرَ وَالنَّجَاشِيِّ فَقِيلَ: إِنَّهُمْ لَا يَقْبَلُونَ كِتَابًا إِلَّا بِخَاتَمٍ فَصَاغَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ خَاتَمًا حَلْقَةَ فِضَّةٍ نُقِشَ فِيهِ: مُحَمَّدٌ رَسُولُ اللَّهِ. رَوَاهُ مُسْلِمٌ. وَفِي رِوَايَةٍ لِلْبُخَارِيِّ: كَانَ نَقْشُ الْخَاتَمِ ثَلَاثَةَ أَسْطُرٍ: مُحَمَّدٌ سَطْرٌ ورسولُ الله سطر وَالله سطر
Unreviewed translation. All hadiths in this collection are available in five languages. Titles and introductions may remain in Arabic.
Anas reported: The Prophet ﷺ intended to write to Khosrow, Caesar, and the Negus. He was told that they would accept a letter only if it bore a seal. The Messenger of Allah ﷺ then had a silver ring made, with the words “Muhammad, Messenger of Allah” engraved on it. Muslim transmitted it. A version from Bukhari says the engraving was in three lines: “Muhammad” on one line, “Messenger of Allah” on another, and “Allah” on the third.