What sort of suspicion is allowed.
باب مَا يَكُونُ مِنَ الظَّنِّ
Sahih al-Bukhari, Book of Good Manners and Form (Al-Adab)(view book)
Narrated 'Aisha:
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.")
حَدَّثَنَا سَعِيدُ بْنُ عُفَيْرٍ، حَدَّثَنَا اللَّيْثُ، عَنْ عُقَيْلٍ، عَنِ ابْنِ شِهَابٍ، عَنْ عُرْوَةَ، عَنْ عَائِشَةَ، قَالَتْ قَالَ النَّبِيُّ ﷺ " مَا أَظُنُّ فُلاَنًا وَفُلاَنًا يَعْرِفَانِ مِنْ دِينِنَا شَيْئًا ". قَالَ اللَّيْثُ كَانَا رَجُلَيْنِ مِنَ الْمُنَافِقِينَ.
Classification
Narrated Al-Laith:
'Aisha said "The Prophet entered upon me one day and said, 'O 'Aisha! I do not think that so-and-so and so-and-so know anything of our religion which we follow."'
حَدَّثَنَا ابْنُ بُكَيْرٍ، حَدَّثَنَا اللَّيْثُ، بِهَذَا وَقَالَتْ دَخَلَ عَلَىَّ النَّبِيُّ ﷺ يَوْمًا وَقَالَ " يَا عَائِشَةُ مَا أَظُنُّ فُلاَنًا وَفُلاَنًا يَعْرِفَانِ دِينَنَا الَّذِي نَحْنُ عَلَيْهِ ".