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ahmad:10848ʿAbd al-Ṣamad from my father > al-Ḥusayn / al-Muʿallim > Yaḥyá > ʿAbd al-Raḥman b. ʿAmr > al-Muṭṭalib b. ʿAbdullāh b. Ḥanṭab al-Makhzūmī

"Should I perform Wudu' after eating food that I see in the Book of Allah is permissible because fire has touched it?" Abu Hurairah gathered some pebbles and said: "I bear witness (as many times as) the number of these pebbles, that the Messenger of Allah ﷺ said: 'Perform Wudu' from that which has been touched by fire.'" (Using translation from Nasāʾī 174)   

أحمد:١٠٨٤٨حَدَّثَنَا عَبْدُ الصَّمَدِ حَدَّثَنَا أَبِي حَدَّثَنَا الْحُسَيْنُ يَعْنِي الْمُعَلِّمَ عَنْ يَحْيَى حَدَّثَنِي عَبْدُ الرَّحْمَنِ بْنُ عَمْرٍو أَنَّهُ سَمِعَ الْمُطَّلِبَ بْنَ عَبْدِ اللهِ بْنِ حَنْطَبٍ الْمَخْزُومِيَّ يَقُولُقَالَ ابْنُ عَبَّاسٍ أَتَوَضَّأُ مِنْ طَعَامٍ أَجِدُهُ حَلَالًا فِي كِتَابِ اللهِ ﷻ لِأَنَّهُ مَحَشَتْهُ النَّارُ قَالَ

فَجَمَعَ أَبُو هُرَيْرَةَ حَصًى بَيْنَ يَدَيْهِ فَقَالَ أَشْهَدُ عَدَدَ هَذَا الْحَصَى لَقَالَ رَسُولُ اللهِ ﷺ تَوَضَّئُوا مِمَّا مَسَّتِ النَّارُ  


See similar narrations below:

Collected by Nasāʾī
nasai:174Ibrāhīm b. Yaʿqūb > ʿAbd al-Ṣamad b. ʿAbd al-Wārith from my father > Ḥusayn al-Muʿallim > Yaḥyá b. Abū Kathīr > ʿAbd al-Raḥman b. ʿAmr al-Awzāʿī > al-Muṭṭalib b. ʿAbdullāh b. Ḥanṭab

"Should I perform Wudu' after eating food that I see in the Book of Allah is permissible because fire has touched it?" Abu Hurairah gathered some pebbles and said: "I bear witness (as many times as) the number of these pebbles, that the Messenger of Allah ﷺ said: 'Perform Wudu' from that which has been touched by fire.'"  

النسائي:١٧٤أَخْبَرَنَا إِبْرَاهِيمُ بْنُ يَعْقُوبَ قَالَ حَدَّثَنَا عَبْدُ الصَّمَدِ بْنُ عَبْدِ الْوَارِثِ قَالَ حَدَّثَنَا أَبِي عَنْ حُسَيْنٍ الْمُعَلِّمِ قَالَ حَدَّثَنِي يَحْيَى بْنُ أَبِي كَثِيرٍ عَنْ عَبْدِ الرَّحْمَنِ بْنِ عَمْرٍو الأَوْزَاعِيِّ أَنَّهُ سَمِعَ الْمُطَّلِبَ بْنَ عَبْدِ اللَّهِ بْنِ حَنْطَبٍ يَقُولُ قَالَ ابْنُ عَبَّاسٍ أَتَوَضَّأُ مِنْ طَعَامٍ أَجِدُهُ فِي كِتَابِ اللَّهِ حَلاَلاً

لأَنَّ النَّارَ مَسَّتْهُ فَجَمَعَ أَبُو هُرَيْرَةَ حَصًى فَقَالَ أَشْهَدُ عَدَدَ هَذَا الْحَصَى أَنَّ رَسُولَ اللَّهِ ﷺ قَالَ تَوَضَّئُوا مِمَّا مَسَّتِ النَّارُ