I heard the Prophet ﷺ talking at the pulpit while Al-Hasan was sitting beside him, and he (i.e. the Prophet ) was once looking at the people and at another time Al-Hasan, and saying, "This son of mine is a Saiyid (i.e. chief) and perhaps Allah will bring about an agreement between two sects of the Muslims through him."  

سَمِعْتُ النَّبِيَّ ﷺ عَلَى الْمِنْبَرِ وَالْحَسَنُ إِلَى جَنْبِهِ يَنْظُرُ إِلَى النَّاسِ مَرَّةً وَإِلَيْهِ مَرَّةً وَيَقُولُ ابْنِي هَذَا سَيِّدٌ وَلَعَلَّ اللَّهَ أَنْ يُصْلِحَ بِهِ بَيْنَ فِئَتَيْنِ مِنَ الْمُسْلِمِينَ  

"I saw the Messenger of Allah ﷺ on the Minbar, and Al-Hasan was with him. He would turn to the people sometimes and turn to him (Al-Hasan) sometimes, and he said: 'This son of mine is a leader (Sayyid) and Allah may make peace between two large groups of Muslims through him.'"  

سَمِعْتُ أَبَا بَكْرَةَ يَقُولُ لَقَدْ رَأَيْتُ رَسُولَ اللَّهِ ﷺ عَلَى الْمِنْبَرِ وَالْحَسَنُ مَعَهُ وَهُوَ يُقْبِلُ عَلَى النَّاسِ مَرَّةً وَعَلَيْهِ مَرَّةً وَيَقُولُ إِنَّ ابْنِي هَذَا سَيِّدٌ وَلَعَلَّ اللَّهَ أَنْ يُصْلِحَ بِهِ بَيْنَ فِئَتَيْنِ مِنَ الْمُسْلِمِينَ عَظِيمَتَيْنِ  

"I saw the Messenger of Allah ﷺ on the Minbar, and Al-Hasan was with him. He would turn to the people sometimes and turn to him (Al-Hasan) sometimes, and he said: 'This son of mine is a leader (Sayyid) and Allah may make peace between two large groups of Muslims through him.'" (Using translation from Nasāʾī 1410)   

عَنْ أَبِي بَكَرَةَ رَأَيْتُ رَسُولَ اللهِ ﷺ عَلَى الْمِنْبَرِ وَحَسَنٌ مَعَهُ وَهُوَ يُقْبِلُ عَلَى النَّاسِ مَرَّةً وَعَلَيْهِ مَرَّةً وَيَقُولُ إِنَّ ابْنِي هَذَا سَيِّدٌ وَلَعَلَّ اللهَ أَنْ يُصْلِحَبِهِ بَيْنَ فِئَتَيْنِ مِنَ الْمُسْلِمِينَ  

The Messenger of Allah ﷺ said to al-Hasan ibn Ali. This son of mine is a Sayyid (chief), and I hope Allah may reconcile two parties of my community by means of him. Hammad's version has: And perhaps Allah may reconcile two large parties of Muslims by means of him. (Using translation from Abū Dāʾūd 4662)   

قَالَ رَسُولُ اللَّهِ ﷺ لِلْحَسَنِ بْنِ عَلِيٍّ «إِنَّ ابْنِي هَذَا سَيِّدٌ وَلَعَلَّ اللَّهَ أَنْ يُصْلِحَ بِهِ بَيْنَ فِئَتَيْنِ مِنَ الْمُسْلِمِينَ عَظِيمَتَيْنِ»  

[Machine] I heard Abu Bakr say, "I saw the Prophet ﷺ on the pulpit and with him was Al-Hasan bin Ali, and he looked at him once and at the people once, and he said, 'Indeed, my son here is a master and perhaps Allah will make peace between two groups of Muslims through him.'"  

سَمِعْتُ أَبَا بَكْرَةَ يَقُولُ رَأَيْتُ النَّبِيَّ ﷺ عَلَى الْمِنْبَرِ وَمَعَهُ الْحَسَنُ بْنُ عَلِيٍّ وَهُوَ يَنْظُرُ إِلَيْهِ مَرَّةً وَإِلَى النَّاسِ مَرَّةً وَهُوَ يَقُولُ إِنَّ ابْنِي هَذَا سَيِّدٌ وَلَعَلَّ اللهَ أَنْ يُصْلِحَ بِهِ بَيْنَ فِئَتَيْنِ مِنَ الْمُسْلِمِينَ  

"عَنِ الحَسَنِ قَالَ: رَفَعَ رَسُولُ اللَّهِ ﷺ الْحَسَنَ بْنَ عَلَىٍّ مَعَهُ عَلَى الْمِنْبرِ، فَقَالَ: إن ابْنِى هَذَا سَيِّدٌ وَلَعَلَّ اللَّهَ -تَعَالَى- أَنْ يُصْلِحَ بِهِ بَيْنَ فِئَتَيْنِ مِنَ الْمُسْلِمِينَ".