حَدَّثَنَا مُحَمَّدُ بْنُ بَشَّارٍ، وَمُحَمَّدُ بْنُ يَحْيَى، وَغَيْرُ، وَاحِدٍ، قَالُوا حَدَّثَنَا مُحَمَّدُ بْنُ عَبْدِ اللَّهِ الأَنْصَارِيُّ، حَدَّثَنِي أَبِي، عَنْ ثُمَامَةَ، عَنْ أَنَسِ بْنِ مَالِكٍ، قَالَ كَانَ نَقْشُ خَاتَمِ النَّبِيِّ صلى الله عليه وسلم ثَلاَثَةَ أَسْطُرٍ مُحَمَّدٌ سَطْرٌ وَرَسُولُ سَطْرٌ وَاللَّهِ سَطْرٌ . وَلَمْ يَذْكُرْ مُحَمَّدُ بْنُ يَحْيَى فِي حَدِيثِهِ ثَلاَثَةَ أَسْطُرٍ . وَفِي الْبَابِ عَنِ ابْنِ عُمَرَ .
"The inscription on the ring of the Prophet (ﷺ) was in three line: 'Muhammad' on a line, 'Messenger' on a line, 'Allah' on a line." And Muhammad bin Yahya (one of the two who narrated to him) did not say: "Three lines" in his narration. There are narrations on this topic from Ibn 'Umar. This Hadith of Anas is a Hasan Sahih Gharib.
Source: Jami` at-Tirmidhi — repository translation · Imam Abu Isa Muhammad ibn Isa al-Tirmidhi — authenticity/grade metadata requires independent source review · Sunnah.comAudio not available for the selected reciter.
Source: Jami` at-Tirmidhi — repository arabic · Imam Abu Isa Muhammad ibn Isa al-Tirmidhi · Sunnah.com