[Machine] The Messenger of Allah ﷺ said, "When the water reaches a quantity of forty, it does not carry impurities." This hadith was uniquely reported by Al-Qasim Al-Umari, but he made a mistake in it and he was weak in hadith. It was criticized by Ahmad ibn Hanbal, Yahya ibn Ma'in, Al-Bukhari, and others from the scholars. Abu Abdullah Al-Hafiz informed us, saying, "I heard Abu Ali Al-Hafiz saying, the hadith of Muhammad ibn Al-Munkadir from Jabir from the Prophet ﷺ , 'When the water reaches a quantity of forty, it is a mistake.' The correct one is from Muhammad ibn Al-Munkadir from Abdullah ibn Umar, and its meaning was said to me by Abu Bakr ibn Al-Harith Al-Faqih from Abu Al-Hasan Ad-Daraqutni Al-Hafiz, who said that Al-Qasim had doubts about it, and he was weak and made many mistakes."  

قَالَ رَسُولُ اللهِ ﷺ إِذَا بَلَغَ الْمَاءُ أَرْبَعِينَ قُلَّةً لَا يَحْمِلُ الْخَبَثَ فَهَذَا حَدِيثٌ تَفَرَّدَ بِهِ الْقَاسِمُ الْعُمَرِيُّ هَكَذَا وَقَدْ غَلَطَ فِيهِ وَكَانَ ضَعِيفًا فِي الْحَدِيثِ جَرَّحَهُ أَحْمَدُ بْنُ حَنْبَلٍ وَيَحْيَى بْنُ مَعِينٍ وَالْبُخَارِيُّ وَغَيْرُهُمْ مِنَ الْحُفَّاظِ وَأَخْبَرَنَا أَبُو عَبْدِ اللهِ الْحَافِظُ قَالَ سَمِعْتُ أَبَا عَلِيٍّ الْحَافِظُ يَقُولُ حَدِيثُ مُحَمَّدِ بْنِ الْمُنْكَدِرِ عَنْ جَابِرٍ عَنِ النَّبِيِّ ﷺ إِذَا بَلَغَ الْمَاءُ أَرْبَعِينَ قُلَّةً خَطَأٌ وَالصَّحِيحُ عَنْ مُحَمَّدِ بْنِ الْمُنْكَدِرِ عَنْ عَبْدِ اللهِ بْنِ عُمَرَ وَقَوْلُهُ وَبِمَعْنَاهُ قَالَهُ لِي أَبُو بَكْرِ بْنُ الْحَارِثِ الْفَقِيهُ عَنْ أَبِي الْحَسَنِ الدَّارَقُطْنِيُّ الْحَافِظُ قَالَ وَوَهِمَ فِيهِ الْقَاسِمُ وَكَانَ ضَعِيفًا كَثِيرَ الْخَطَأِ