Narrated Ibn `Abbas:

The Prophet (sallallahu ‘alaihi wa sallam) said, "May Allah bestow His Mercy on the mother of Ishmael! Had she not hastened (to fill her water-skin with water from the Zamzam well). Zamzam would have been a stream flowing on the surface of the earth." Ibn `Abbas further added, "(The Prophet) Abraham brought Ishmael and his mother (to Mecca) and she was suckling Ishmael and she had a water-skin with her.'