"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)
سَمِعْتُ أَبَا بَكَرَةَ يَقُولُ لَقَدْ رَأَيْتُ رَسُولَ اللهِ ﷺ عَلَى الْمِنْبَرِ وَالْحَسَنُ مَعَهُ وَهُوَ يُقْبِلُ عَلَى النَّاسِ مَرَّةً وَعَلَيْهِ مَرَّةً وَيَقُولُ «إِنَّ ابْنِي هَذَا سَيِّدٌ وَلَعَلَّ اللهَ أَنْ يُصْلِحَ بِهِ بَيْنَ فِئَتَيْنِ مِنَ الْمُسْلِمِينَ عَظِيمَتَيْنِ»