"The Messenger of Allah ﷺ was asked about water and how some animals and carnivorous beasts might drink from it. He said: 'If the water is more than two Qullahs, it will not carry filth.'"[1] [1]It comes with some explanation in Sunan At Timidhi 'Abdah (one of the narrators) said: "Muhammad bin Ishaq said: 'A Qullah refers to Jirar (These are two nouns describing large casks that are used to hold water), and a Qullah is the thing that drinking water is held in."' At-Tirmidhi said: "This is the saying of Ash Shafa'i, Ahmad and Ishaq. They say that when the water is two Qullahs then nothing makes it impure, as long as it does not change its smell, and its taste. And they say, it is approximately fifty Qirbahs (waterskins)."  

سُئِلَ رَسُولُ اللَّهِ ﷺ عَنِ الْمَاءِ وَمَا يَنُوبُهُ مِنَ الدَّوَابِّ وَالسِّبَاعِ فَقَالَ إِذَا كَانَ الْمَاءُ قُلَّتَيْنِ لَمْ يَحْمِلِ الْخَبَثَ  

"The Messenger of Allah ﷺ was asked about water and how some animals and carnivorous beasts might drink from it. He said: 'If the water is more than two Qullahs, it will not become filthy.'"  

سُئِلَ رَسُولُ اللَّهِ ﷺ عَنِ الْمَاءِ وَمَا يَنُوبُهُ مِنَ الدَّوَابِّ وَالسِّبَاعِ فَقَالَ إِذَا كَانَ الْمَاءُ قُلَّتَيْنِ لَمْ يَحْمِلِ الْخَبَثَ  

The Prophet ﷺ, was asked about water (in desert country) and what is frequented by animals and wild beasts. He replied: When there is enough water to fill two pitchers, it bears no impurity.  

سُئِلَ رَسُولُ اللَّهِ ﷺ عَنِ الْمَاءِ وَمَا يَنُوبُهُ مِنَ الدَّوَابِّ وَالسِّبَاعِ فَقَالَ ﷺ إِذَا كَانَ الْمَاءُ قُلَّتَيْنِ لَمْ يَحْمِلِ الْخَبَثَ  

[Machine] I heard the Prophet ﷺ being asked about the water that is found in the lowland areas and what comes from animals and predators for drinking. The Prophet ﷺ said, "If the water is equal to two large bowls, it does not carry impurities."  

سَمِعْتُ النَّبِيَّ ﷺ يُسْأَلُ عَنِ الْمَاءِ يَكُونُ بِأَرْضِ الْفَلَاةِ وَمَا يَنُوبُهُ مِنَ الدَّوَابِّ وَالسِّبَاعِ؟ فَقَالَ النَّبِيُّ ﷺ إِذَا كَانَ الْمَاءُ قَدْرَ قُلَّتَيْنِ لَمْ يَحْمِلِ الْخَبَثَ  

[Machine] I heard the Messenger of Allah ﷺ being asked about water that is in a well, from the bottom of the earth, and animals and wild beasts drink from it. The Prophet ﷺ said, "If the water is two buckets in amount, nothing will impure it."  

سَمِعْتُ رَسُولَ اللهِ ﷺ وَهُوَ يُسْأَلُ عَنِ الْمَاءِ يَكُونُ بِالْفَلَاةِ مِنَ الْأَرْضِ وَمَا يَنُوبُهُ مِنَ الدَّوَابِّ وَالسِّبَاعِ فَقَالَ النَّبِيُّ ﷺ إِذَا كَانَ الْمَاءُ قُلَّتَيْنِ لَمْ يُنَجِّسْهُ شَيْءٌ  

[Machine] I heard the Prophet ( peace be upon him) being asked about the water found in the Falah land and what animals and beasts drink from it. The Prophet ( peace be upon him) said, "If the water is two Qullat (a unit of measure), it does not carry impurities."  

سَمِعْتُ النَّبِيَّ ﷺ يُسْأَلُ عَنِ الْمَاءِ يَكُونُ بِأَرْضِ الْفَلَاةِ وَمَا يَنُوبُهُ مِنَ الدَّوَابِّ وَالسِّبَاعِ فَقَالَ النَّبِيُّ ﷺ إِذَاكَانَ الْمَاءُ قُلَّتَيْنِ لَمْ يَحْمِلِ الْخَبَثَ  

"The Messenger of Allah ﷺ was asked about water and how some animals and carnivorous beasts might drink from it. He said: 'If the water is more than two Qullahs, it will not carry filth.'"[1] [1]It comes with some explanation in Sunan At Timidhi 'Abdah (one of the narrators) said: "Muhammad bin Ishaq said: 'A Qullah refers to Jirar (These are two nouns describing large casks that are used to hold water), and a Qullah is the thing that drinking water is held in."' At-Tirmidhi said: "This is the saying of Ash Shafa'i, Ahmad and Ishaq. They say that when the water is two Qullahs then nothing makes it impure, as long as it does not change its smell, and its taste. And they say, it is approximately fifty Qirbahs (waterskins)." (Using translation from Nasāʾī 52)   

أَنَّ رَسُولَ اللَّهِ ﷺ سُئِلَ عَنِ الْمَاءِ وَمَا يَنُوبُهُ مِنَ الدَّوَابِّ وَالسِّبَاعِ فَقَالَ رَسُولُ اللَّهِ ﷺ «إِذَا كَانَ الْمَاءُ قُلَّتَيْنِ لَمْ يُنَجِّسْهُ شَيْءٌ»  

[Machine] "The Prophet ﷺ was asked about water and what can pollute it from animals. The Messenger of Allah ﷺ replied, 'If the water is two containers full, then nothing contaminates it.'"  

أَنَّ النَّبِيَّ ﷺ سُئِلَ عَنِ الْمَاءِ وَمَا يَنُوبُهُ مِنَ السِّبَاعِ وَالدَّوَابِّ فَقَالَ رَسُولُ اللَّهِ ﷺ «إِذَا كَانَ الْمَاءُ قُلَّتَيْنِ لَمْ يُنَجِّسْهُ شَيْءٌ»  

"عَنِ ابْنِ عُمَرَ قَالَ: سُئِلَ رَسُولُ الله ﷺ عَنِ المَاء يَكُونُ بأَرْضِ الْفَلَاَةِ وَمَا يَنُوُبهُ مِنَ الدَّوَابِّ والسِّبَاع، فَقَالَ رَسُولُ الله ﷺ : إِذَا بَلَغَ الْمَاءُ قُلَّتَيْنِ لَمْ يَحْمِلِ الْخَبَثَ".