In several Sahih (authentic) Hadiths, Muhammad is described as putting his hand into a vessel of water, after which water began to flow from his fingers like springs, allowing hundreds of companions to perform ablution.
Sahih al-Bukhari 3576: Narrated by Jabir bin Abdullah, who claimed that during the Treaty of Hudaybiyyah, 1,500 people were thirsty. Muhammad placed his hand in a pot, and "water started flowing from among his fingers like springs."
Sahih al-Bukhari 3572: similar account involving 300 people at Az-Zawra.
The Quran consistently records the Meccans asking for such signs, yet the response in Surah 17:59 is that God stopped sending signs because previous people rejected them. The existence of a miracle involving 1,500 witnesses that is never mentioned in the Quran suggests these stories were later developments designed to elevate the Prophet’s status.
This is a direct parallel to Moses in Exodus 17:6 and Numbers 20:11 where water gushes from a rock to provide for the thirsty Israelites. In the Hadith, the miracle is made more "personal" by having the water come from the body of the prophet rather than a stone.