Wudu’ will be the light of the believer on the Day of Resurrection, for wudu’ will brighten his face and limbs, and the Muslims will be recognized in the place of gathering by this characteristic, which is unique to this ummah. Because wudu’ has this virtue, the Prophet (blessings and peace of Allah be upon him) used to do wudu’ for every obligatory prayer, so as to attain this reward and virtue, as Anas ibn Malik (may Allah be pleased with him) narrated from him. Doing wudu’ for every prayer is Sunnah, but it is permissible for the Muslim to offer more than one prayer with one wudu’, so long as he has not invalidated it. This is what Anas (may Allah be pleased with him) meant when he said: One wudu’ would be sufficient for one of us so long as he did not invalidate it by minor impurity that invalidates wudu’, such as passing wind, urinating or defecating. It is proven in Sahih Muslim, in the hadith of Buraydah (may Allah be pleased with him), that he said: The Prophet (blessings and peace of Allah be upon him) used to do wudu’ for every prayer, but on the day of the conquest [of Makkah] he offered all the prayers with one wudu’. ‘Umar said to him: You have done something that you never used to do. He said: “I did it deliberately”, meaning that he did it in order to show that it is permissible to offer more than one prayer with one wudu’. This hadith highlights the virtue of doing wudu’ for every prayer..