No one resembled the Prophet ﷺ more than Hasan bin Ali.
لم يكن أحد أشبه بالنبي ﷺ من الحسن بن علي.
Bukhari narrated it in the Virtues of the Companions (3752) from Ibrahim bin Musa, from Hisham bin Yusuf, from Mamar, from Zuhri, from Anas. Abdul-Razzaq said, from Mamar, from Zuhri, who said, Anas told me, and then he mentioned it.