Sahih Muslim Book - 43, Hadith - 5961

وَحَدَّثَنَا يَحْيَى بْنُ أَيُّوبَ ، وَقُتَيْبَةُ ، وَابْنُ حُجْرٍ ، قَالُوا : حَدَّثَنَا إِسْمَاعِيلُ يَعْنُونَ ابْنَ جَعْفَرٍ ، عَنْ عَبْدِ اللهِ بْنِ دِينَارٍ ، عَنْ أَبِي صَالِحٍ السَّمَّانِ ، عَنْ أَبِي هُرَيْرَةَ ، أَنَّ رَسُولَ اللهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ قَالَ : مَثَلِي وَمَثَلُ الأَنْبِيَاءِ مِنْ قَبْلِي كَمَثَلِ رَجُلٍ بَنَى بُنْيَانًا فَأَحْسَنَهُ وَأَجْمَلَهُ ، إِلاَّ مَوْضِعَ لَبِنَةٍ مِنْ زَاوِيَةٍ مِنْ زَوَايَاهُ ، فَجَعَلَ النَّاسُ يَطُوفُونَ بِهِ وَيَعْجَبُونَ لَهُ وَيَقُولُونَ : هَلاَّ وُضِعَتْ هَذِهِ اللَّبِنَةُ قَالَ فَأَنَا اللَّبِنَةُ ، وَأَنَا خَاتَمُ النَّبِيِّينَ.

It was narrated from Abu Hurairah that the Messenger of Allah (s.a.w) said: “The likeness of myself and the Prophet who came before me is that of a man who built a structure and built it well and made it beautiful, except for the space of a brick in one of its corners. The people started walking around it, admiring it and saying: ‘Why is this brick missing?’ I am that brick, I am the Seal of the Prophets.”