Sahih al-Bukhari 3542
Sahih al-Bukhari · Book 61: Virtues and Merits of the Prophet (pbuh) and his Companions · The description of the Prophet (saws)
Narrated `Uqba bin Al-Harith:
حَدَّثَنَا أَبُو عَاصِمٍ ، عَنْ عُمَرَ بْنِ سَعِيدِ بْنِ أَبِي حُسَيْنٍ ، عَنِ ابْنِ أَبِي مُلَيْكَةَ ، عَنْ عُقْبَةَ بْنِ الْحَارِثِ ، قَالَ صَلَّى أَبُو بَكْرٍ ـ رضى الله عنه ـ الْعَصْرَ، ثُمَّ خَرَجَ يَمْشِي فَرَأَى الْحَسَنَ يَلْعَبُ مَعَ الصِّبْيَانِ، فَحَمَلَهُ عَلَى عَاتِقِهِ وَقَالَ بِأَبِي شَبِيهٌ بِالنَّبِيِّ لاَ شَبِيهٌ بِعَلِيٍّ. وَعَلِيٌّ يَضْحَكُ.
(Once) Abu Bakr offered the `Asr prayer and then went out walking and saw Al-Hasan playing with the boys. He lifted him on to his shoulders and said, " Let my parents be sacrificed for your sake! (You) resemble the Prophet (ﷺ) and not `Ali," while `Ali was smiling.