قَالَ رَسُولُ اللٌّهِ (ص): مَاءُ زَمْزَمَ شِفَاءٌ لِمَا شُرِبَ لَهُ.
The Messenger of Allah (blessings of Allah be upon him and his family) has said, “The water of Zamzam is a cure for whatever (ailment) it is taken for.”
Biharul Anwar, Volume 96, Page 245