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suyuti:2739a
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السيوطي:٢٧٣٩a

"إذَا وجَدَ أَحدُكُمْ القملةَ في المسجدِ فليصرَّها حتَّى يُخرْجها ".  

[ق] البيهقى في السنن عنه

See similar narrations below:

Collected by Aḥmad, Bayhaqī, Suyūṭī
ahmad:23485Ismāʿīl > Ḥajjāj al-Ṣawwāf > Yaḥyá b. Abū Kathīr > al-Ḥaḍramī b. Lāḥiq > a man from al-Anṣār

[Machine] The Messenger of Allah ﷺ said, "If one of you finds a louse in his garment, he should kill it and not throw it in the mosque."  

أحمد:٢٣٤٨٥حَدَّثَنَا إِسْمَاعِيلُ حَدَّثَنِي حَجَّاجٌ الصَّوَّافُ عَنْ يَحْيَى بْنِ أَبِي كَثِيرٍ عَنِ الْحَضْرَمِيِّ بْنِ لَاحِقٍ عَنْ رَجُلٍ مِنَ الْأَنْصَارِ

أَنَّ رَسُولَ اللهِ ﷺ قَالَ إِذَا وَجَدَ أَحَدُكُمُ الْقَمْلَةَ فِي ثَوْبِهِ فَلْيَصُرَّهَا وَلَا يُلْقِهَا فِي الْمَسْجِدِ  

bayhaqi:3608Abū Bakr b. al-Ḥārith > Abū Muḥammad b. Yaḥyá b. Ḥibbān > Abū Yaḥyá al-Rāzī > Hannād > Wakīʿ > ʿAlī b. Mubārak > Yaḥyá b. Abū Kathīr > Ḥaḍramī b. Lāḥiq > a man from al-Anṣār

[Machine] The Messenger of Allah ﷺ said: "When one of you finds a louse in the mosque, let him crush it until he kills it. And this is a good and appropriate ruling in such a case."  

البيهقي:٣٦٠٨وَأَخْبَرَنَا أَبُو بَكْرِ بْنُ الْحَارِثِ أنبأ أَبُو مُحَمَّدِ بْنُ يَحْيَى بْنِ حِبَّانَ ثنا أَبُو يَحْيَى الرَّازِيُّ ثنا هَنَّادٌ ثنا وَكِيعٌ عَنْ عَلِيِّ بْنِ مُبَارَكٍ عَنْ يَحْيَى بْنِ أَبِي كَثِيرٍ عَنْ حَضْرَمِيِّ بْنِ لَاحِقٍ عَنْ رَجُلٍ مِنَ الْأَنْصَارِ قَالَ

قَالَ رَسُولُ اللهِ ﷺ إِذَا وَجَدَ أَحَدُكُمُ الْقَمْلَةَ فِي الْمَسْجِدِ فَلْيَصُرَّهَا حَتَّى يُخْرِجَهَا وَهَذَا مُرْسَلٌ حَسَنٌ فِي مِثْلِ هَذَا