Narrated Miswar bin Makhrama and Marwan: Allah's Messenger (s.a.w.a.) set out at the time of Hudaibiya (treaty) and mentioned the rest of Hadith and whenever Allah's Messenger (s.a.w.a.) would spit, the spittle would fall in the hand of one them (the Prophet's Companions) who would rub it on his face and skin.
It has been narrated on the authority of Ibn Salama. He heard the tradition from his father who said:
We arrived at Hudaibiya with the Messenger of Allah (s.a.w.a.) and we were fourteen hundred in number. There were fifty goats for them which could not be watered (by the small quantity of water in the local well). So, the Messenger of Allah (s.a.w.a.) sat on the brink of the well. Either he prayed or spat into the well The water welled up. We drank and watered (the beasts as well).