Mishkat al-Masabih 30 Fine Qualities كتاب المناقب 103

عَن سَعْدِ بْنِ أَبِي وَقَّاصٍ قَالَ: قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ لِعَلِيٍّ: «أَنْتَ مِنِّي بِمَنْزِلَةِ هَارُونَ مِنْ مُوسَى إِلَّا أَنَّهُ لَا نَبِيَّ بَعْدِي» . مُتَّفَقٌ عَلَيْهِ

Sa`d b. Abu Waqqas told that God’s messenger said to `Ali, “You are in the same position with relation to me as Aaron was with relation to Moses; but there will be no prophet after me.” (Bukhari and Muslim.)