'Amr bin Shu'aib on his father's authority said that his grandfather told that the Messenger of Allah ﷺ decided regarding the stream al-Mahzur that its water should be held back till it reached the ankles, and that the upper waters should then be allowed to flow to the lower.

حَدَّثَنَا أَحْمَدُ بْنُ عَبْدَةَ، حَدَّثَنَا الْمُغِيرَةُ بْنُ عَبْدِ الرَّحْمَنِ، حَدَّثَنِي أَبِي عَبْدُ الرَّحْمَنِ بْنُ الْحَارِثِ، عَنْ عَمْرِو بْنِ شُعَيْبٍ، عَنْ أَبِيهِ، عَنْ جَدِّهِ، أَنَّ رَسُولَ اللَّهِ ﷺ قَضَى فِي السَّيْلِ الْمَهْزُورِ أَنْ يُمْسَكَ حَتَّى يَبْلُغَ الْكَعْبَيْنِ ثُمَّ يُرْسِلُ الأَعْلَى عَلَى الأَسْفَلِ .