[Machine] That the Messenger of Allah ﷺ prayed and took off his sandals, so the people also took off their sandals. He said, "Why did you take off your sandals?" They replied, "O Messenger of Allah, we saw you take off yours, so we took off ours." He said, "Indeed, Jibril came to me and informed me that they had impurities in them. So when one of you enters the mosque, let him reverse his sandals and look into them for impurities. If he finds any impurities, let him wipe them off on the ground, then let him pray in them." This Hadith is known through the route of Hammam ibn Salamah from Abu Na'amah Abdur-Rabbih as-Sa'di from Abu Nadrah. It has also been narrated from al-Hajjaj ibn al-Hajjaj from Abu Amir al-Khazzaz from Abu Na'amah, but it is not a strong narration. It has also been narrated from another route, but it is not preserved, from Ayyub as-Sakhtiyani from Abu Nadrah.
أَنَّ رَسُولَ اللهِ ﷺ صَلَّى فَخَلَعَ نَعْلَيْهِ فَخَلَعَ النَّاسُ نِعَالَهُمْ قَالَ لِمَ خَلَعْتُمْ نِعَالَكُمْ؟ قَالُوا يَا رَسُولَ اللهِ رَأَيْنَاكَ خَلَعْتَ فَخَلَعْنَا قَالَ إِنَّ جَبْرَائِيلَ أَتَانِي فَأَخْبَرَنِي أَنَّ بِهِمَا خَبَثًا فَإِذَا جَاءَ أَحَدُكُمُ الْمَسْجِدَ فَلْيَقْلِبْ نَعْلَيْهِ فَلْيَنْظُرْ فِيهِمَا خَبَثًا فَإِنْ وَجَدَ خَبَثًا فَلْيَمْسَحْهُمَا بِالْأَرْضِ ثُمَّ لِيُصَلِّ فِيهِمَا هَذَا الْحَدِيثُ يُعْرَفُ بِحَمَّادِ بْنِ سَلَمَةَ عَنْ أَبِي نَعَامَةَ عَبْدِ رَبِّهِ السَّعْدِيِّ عَنْ أَبِي نَضْرَةَ وَقَدْ رُوِيَ عَنِ الْحَجَّاجِ بْنِ الْحَجَّاجِ عَنْ أَبِي عَامِرٍ الْخَزَّازِ عَنْ أَبِي نَعَامَةَ وَلَيْسَ بِالْقَوِيِّ وَرُوِيَ مِنْ وَجْهٍ آخَرَ غَيْرِ مَحْفُوظٍ عَنْ أَيُّوبَ السَّخْتِيَانِيِّ عَنْ أَبِي نَضْرَةَ