Abu Dharr reported,

The Messenger of Allah ﷺ said to me, "How long have you been here?"I replied, "I have been here for thirty days and nights."He asked, "Who was feeding you?"I said, "I had no food except the water of Zamzam, yet I grew so plump that the folds of my belly creased, and I felt no pang of hunger in my liver."He said, "It is blessed. It is food that nourishes."

Azami 5217

Sahih

عن أبي ذر، قال

قال لي رسول الله ﷺ: متى كنت ههنا؟ قال: قلت قد كنت ههنا منذ ثلاثين بين ليلة ويوم قال: فمن كان يطعمك؟ قال: قلت ما كان لي طعام إلا ماء زمزم فسمنت حتى تكسرت عكن بطني، وما أجد على كبدي سخفة جوع! قال: إنها مباركة، إنها طعام طعم.

الأعظمي 5217صحيح
Contents
Reference
Commentary
Ayat
Collection
Jami al-Kamil
Book
Hajj
Chapter
Description of the Hajj of the Prophet ﷺ as narrated by Jabir and others, and the rulings mentioned therein
Section
Drinking Zamzam water and pouring it on the head for the pilgrim, the one performing umrah, and others, and that it is blessed water and one seeks healing through it
Numbering
Jami al-Kamil 5217 (2nd edition)
Azami 5217