The Prophetic Mudd (Al-Mudd al-Nabawi)
Just as we have litres, gallons and other containers to measure volume, the mudd and sa' were common units of measure used in the era of the Messenger of Allah ﷺ. Sayyiduna Safinah رضي الله عنه narrated: "The Prophet ﷺ would perform Wudu with a Mudd, and he would perform Ghusl with a Sa." (Jami' at-Tirmidhi 56) In modern day measurements, one mudd equates to approximately 775ml. As can be seen from the hadith above, as well as numerous very similar narrations, the Messenger of Allah ﷺ used to perform ablution with a mudd full of water. Al-Mudd al-Nabawiyya allows us to see exactly how much water the Prophet ﷺ used for his wudu. We may make a habit of using this vessel of water for performing wudu ourselves, which may become a source of reward for reviving the practice of this Sunnah. The use of this vessel also helps us to not waste water, which may be an additional sources of reward. As the mudd is a unit of measure, these vessels are not limited to ablution but can also be used