In surah al-Ma'idah, Allah says

 In surah al-Ma'idah, Allah says:

*يَا أَهْلَ الْكِتَابِ قَدْ جَاءَكُمْ رَسُولُنَا يُبَيِّنُ لَكُمْ كَثِيرًا مِّمَّا كُنتُمْ تُخْفُونَ مِنَ الْكِتَابِ وَيَعْفُو عَن كَثِيرٍ ۚ قَدْ جَاءَكُم مِّنَ اللَّهِ نُورٌ وَكِتَابٌ مُّبِينٌ*

*O People of the Book, Our Messenger has come to you, making much of what you used to conceal of the scripture clear to you and passing over much. A light and a clear book has come to you from Allah. [15]*

In part of his commentary on this ayah, Abu Ja'far Muhammad ibn Jarir al-Tabari wrote:

Ibn 'Abbaas said: Whoever disbelieves in the punishment of stoning has disbelieved in the Qur'an in a way he did not expect. Allah says:

*يَا أَهْلَ الْكِتَابِ قَدْ جَاءَكُمْ رَسُولُنَا يُبَيِّنُ لَكُمْ كَثِيرًا مِّمَّا كُنتُمْ تُخْفُونَ مِنَ الْكِتَابِ*

*"O People of the Book, Our Messenger has come to you, making much of what you used to conceal of the scripture clear to you" [al-Ma'idah ayah 15]*

and stoning is part of what they concealed.

[Tafsir al-Tabari 10/142]