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 saw the Messenger of Allah ﷺ with Al-Hasan ibn Ali while he was saying, 'Verily, this son of mine is a leader, and Allah will bring peace and reconciliation through him between two great factions of the Muslims.'"  

رَأَيْتُ رَسُولَ اللهِ ﷺ وَمَعَهُ الْحَسَنُ بْنُ عَلِيٍّ ؓ وَهُوَ يَقُولُ «إِنَّ ابْنِي هَذَا سَيِّدٌ وَإِنَّ اللهَ سَيُصْلِحُ عَلَى يَدَيْهِ بَيْنَ فِئَتَيْنِ مِنَ الْمُسْلِمِينَ عَظِيمَتَيْنِ»  

[Machine] The Messenger of Allah ﷺ said, "Indeed, my son, meaning Al-Hasan, is a master, and Allah will reconcile through him between two factions of Muslims."  

قَالَ رَسُولُ اللهِ ﷺ «إِنَّ ابْنِي يَعْنِي الْحَسَنَ سَيِّدٌ ولَيُصْلِحَنَّ اللهُ بِهِ بَيْنَ فِئَتَيْنِ مِنَ الْمُسْلِمِينَ»  

"إِنَّ ابْنِى هَذَا سيِّدٌ، ولَعَلَّ اللَّهَ أنْ يُصْلِحَ به بَيْنَ فئَتَيْنِ عَظيمَتَيْن مِنَ المُسْلمِينَ ".  

"إِنَّ ابْنى هَذَا سَيِّدٌ وَلَيُصْلِحَن اللَّهُ بِهِ بَيْنَ فِئَتَيْنِ مِنَ المُسْلِميِنَ عَظِيمتَيْن ".  

"إِنَّ ابْنى هَذَا سَيِّدٌ وإنَّ اللَّهَ سَيُصْلِح عَلَى يَدَيْه بَيْنَ فئَتَيْنِ من المُسْلِمِينَ عَظيَمتَيْنِ ".