Sahih al-Bukhari 3706
Book 62: Companions of the Prophet
Arabic
حَدَّثَنِي مُحَمَّدُ بْنُ بَشَّارٍ، حَدَّثَنَا غُنْدَرٌ، حَدَّثَنَا شُعْبَةُ، عَنْ سَعْدٍ، قَالَ سَمِعْتُ إِبْرَاهِيمَ بْنَ سَعْدٍ، عَنْ أَبِيهِ، قَالَ النَّبِيُّ صلى الله عليه وسلم لِعَلِيٍّ " أَمَا تَرْضَى أَنْ تَكُونَ مِنِّي بِمَنْزِلَةِ هَارُونَ مِنْ مُوسَى ".
English translation
And narrated Sad that the Prophet (ﷺ) said to 'Ali, "Will you not be pleased from this that you are to me like Aaron was to Moses?
Reference: Sahih al-Bukhari 3706, Book of Companions of the Prophet. English translation by Dr. Muhammad Muhsin Khan.