Verily Allah sent Muhammad ﷺ with truth and He sent down the Book upon him, and the verse of stoning was included in what was sent down to him. We recited it, retained it in our memory and understood it. Messenger of Allah ﷺ awarded the punishment of stoning to death (to the married adulterer and adulteress) and, after him, we also awarded the punishment of stoning, I am afraid that with the lapse of time, the people (may forget it) and may say: We do not find the punishment of stoning in the Book of Allah, and thus go astray by abandoning this duty prescribed by Allah. Stoning is a duty laid down in Allah's Book for married men and women who commit adultery when proof is established, or it there is pregnancy, or a confession. (Using translation from Muslim 1691a)
عُمَرُ وَهُوَ جَالِسٌ عَلَى مِنْبَرِ رَسُولِ اللهِ ﷺ إِنَّ اللهَ بَعَثَ يَعْنِي مُحَمَّدًا ﷺ بِالْحَقِّ وَأَنْزَلَ عَلَيْهِ الْكِتَابَ فَكَانَ فِيمَا أَنْزَلَ عَلَيْهِ آيَةُ الرَّجْمِ قَرَأْنَاهَا وَوَعَيْنَاهَا وَعَقِلْنَاهَا وَرَجَمَ رَسُولُ اللهِ ﷺ وَرَجَمْنَا بَعْدَهُ فَأَخْشَى إِنْ طَالَ بِالنَّاسِ زَمَانٌ أَنْ يَقُولَ قَائِلٌ «وَاللهِ مَا نَجِدُ الرَّجْمَ فِي كِتَابِ اللهِ فَيَضِلُّوا بِتَرْكِ فَرِيضَةٍ أَنْزَلَهَا اللهُ وَإِنَّ الرَّجْمَ فِي كِتَابِ اللهِ حَقٌّ عَلَى مَنْ زَنَا إِذَا أُحْصِنَ مِنَ الرِّجَالِ وَالنِّسَاءِ إِذَا قَامَتِ الْبَيِّنَةُ أَوْ كَانَ الْحَبَلُ أَوْ الِاعْتِرَافُ»