Sahih al-Bukhari 6067
Sahih al-Bukhari · Book 78: Good Manners and Form (Al-Adab) · What sort of suspicion is allowed.
Narrated `Aisha:
حَدَّثَنَا سَعِيدُ بْنُ عُفَيْرٍ ، حَدَّثَنَا اللَّيْثُ ، عَنْ عُقَيْلٍ ، عَنِ ابْنِ شِهَابٍ ، عَنْ عُرْوَةَ ، عَنْ عَائِشَةَ ، قَالَتْ قَالَ النَّبِيُّ صلى الله عليه وسلم " مَا أَظُنُّ فُلاَنًا وَفُلاَنًا يَعْرِفَانِ مِنْ دِينِنَا شَيْئًا ". قَالَ اللَّيْثُ كَانَا رَجُلَيْنِ مِنَ الْمُنَافِقِينَ.
The Prophet (ﷺ) said, "I do not think that so-and-so and so-and-so know anything of our religion." (And Al-Laith said, "These two persons were among the hypocrites.")