Sahih Bukhari

Narrated Ibn `Abbas:The Prophet (ﷺ) 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