"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