as soon as the messenger of allâh [pbuh] reached the defile, ‘ali bin abu talib went out and filled his water container with water from al-mihras. ‘al-mihras’ is said to be hollow (concaved) rock containing plenty of water. it was also said that it is a water spring in uhud mountain. anyway, ‘ali brought that water to the messenger of allâh [pbuh] to drink. finding that it smelt bad he refused to drink it, but only washed the blood off his face and poured some of it over his head saying: allâh’s wrath is great on those who besmeared his messenger’s face with blood. [ibn hisham 2/85]

sahl said: "by allâh, i know who washed the wound of the messenger of allâh [pbuh] and who poured out water for him and what (substances) his wound was treated with: his daughter fatimah washed it, whereas ‘ali poured water out of the container. when fatimah realized that water increased the flow of blood, she took a piece of straw mat, burnt it a little and stuck it to the wound so blood ceased flowing." [sahih al-bukhari 2/584]

muhammad bin maslamah brought him fresh water to drink. the prophet [pbuh] drank and supplicated allâh to provide him with good things. [as-seerat al-halabiyah 2/30] owing to the wounds and their bad effects on his body, the messenger of allâh [pbuh] led his followers in prayer in a sitting posture and so did the muslims. [ibn hisham 2/87]