Sunan Ibn Majah, Volume 3, Book 20, Hadith 2559 (DarusSalam) ⓘ

It was narrated from Ibn`Abbas that the Messenger of Allah said: “If I were to stone anyone without proof, I would have stoned so-and-so, for there is obviously doubt concerning her speech, her appearance and those who enter upon her.”

حَدَّثَنَا الْعَبَّاسُ بْنُ الْوَلِيدِ الدِّمَشْقِيُّ، حَدَّثَنَا زَيْدُ بْنُ يَحْيَى بْنِ عُبَيْدٍ، حَدَّثَنَا اللَّيْثُ بْنُ سَعْدٍ، عَنْ عُبَيْدِ اللَّهِ بْنِ أَبِي جَعْفَرٍ، عَنْ أَبِي الأَسْوَدِ، عَنْ عُرْوَةَ، عَنِ ابْنِ عَبَّاسٍ، قَالَ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم ‏ "‏ لَوْ كُنْتُ رَاجِمًا أَحَدًا بِغَيْرِ بَيِّنَةٍ لَرَجَمْتُ فُلاَنَةَ فَقَدْ ظَهَرَ فِيهَا الرِّيبَةُ فِي مَنْطِقِهَا وَهَيْئَتِهَا وَمَنْ يَدْخُلُ عَلَيْهَا ‏" ‏ ‏.‏