No one resembled the Messenger of Allah ﷺ more than Hasan bin Ali and Fatimah, may the blessings of Allah be upon them all.
حدثنا عبد الرزاق قال أخبرنا معمر عن الزهري قال
لم يكن أحد أشبه برسول الله ﷺ من الحسن بن علي وفاطمة صلوات الله عليهم أجمعين
Its isnad is sahih. It is found in similar form in Bukhari, 7/95, no. 3752, in the book of the virtues of the companions, chapter on the merits of Hasan and Husayn, and in Tirmidhi, in the book of merits, likewise, 5/659, no. 3776, where he said, hasan sahih.