Zam zam water
The well of Zam zam is located in mecca. According to Islamic belief, it is a miraculously-generated source of water from Allah, which began thousands of years ago when Abraham's (Ibrāhīm) infant son Ishmael (ʼIsmāʻīl) was thirsty and kept crying for water. The zam zam well has provided 4000 years of continuous water supply, that itself is a living miracle.
Zam zam in Quran
Safa marwa is mentioned in Quran but zam zam is not mentioned in Holy Quran.
Zam zam in Hadith
The scholars (may Allaah have mercy on them) agreed that it is mustahabb (recommended) for pilgrims on Hajj and ‘Umrah in particular, and for all Muslims in general, to drink Zamzam water, because of the saheeh hadeeth in which
"the Prophet (peace and blessings of Allaah be upon him) is reported to have drunk the water of Zamzam."
[Sahih Bukhari 3:492]
Ibn Abbas reported,
"I served.(water of ) zamzam to Allah’s Messenger (may peace be upon him), and he drank it while standing."
[Sahih Muslim: Book #023, Hadith#5023]
Ibn’ Abbas reported that,
"Allah’s Messenger (may peace be upon him) drank (water) from zamzam in a bucket while he was standing"
[Sahih Muslim: Book#023, Hadith#5024]
Ibn’ Abbas reported,
"I served (water from) zamzam to Allah’s Messenger ( may Allah peace be upon him), and he drank while standing, and he asked for it while he was near the House (i.e. House of Allah-Ka’ba)."
[Sahih Muslim: Book#023, Hadith#5026]
Aa’ishah(R.A.) reported that she took Zamzam water home with her in bottles, and said,
"The Messenger of Allaah (peace and blessings of Allaah be upon him) took some of it away with him, and he used to pour it on the sick and give it to them to drink."
Few treatments by Zam Zam
One of the miracles of Zamzam water is its ability to satisfy both thirst and hunger. One of the Companions of the Prophet said that before Islam, the water was called "Shabbaa'ah" or satisfying. It was filling and helped them nourish their families.
After Islam, this powerful ability to quench thirst and fill stomachs remained. Prophet Muhammad said: "The best water on the face of the earth is the water of Zamzam; it is a kind of food and a healing from sickness."
It is clearly evident from many Hadith that zamzam water can cure any disease for which it has been drunk with intention. Thus it is a lavish meal and a great healer.
Zam Zam for black magic or demonic possession
People who affected through black magic or demonic possession can be cured by drinking Zam Zam water or water at which Surah Fatiha or Manzil has been recited and blown.
some people also prescribe the patient that After the specific amal the victim will use zamzam water for drinking, washing and spraying inside the house.