Sahih Muslim
The Book of Faith (Kitab Al-Iman)
Book Number: 001 / Hadith Number: 315
It is reported on the authority of Malik b. Sa'sa' that the Messenger of Allah (may peace be upon him) narrated the hadith (mentioned above) and added to it: I was brought a gold basin full of wisdom and faith, and then the (part of the body) right from the upper end of the chest to the lower part of the abdomen was opened and it was washed with the water of Zamzam and then flled with wisdom and faith.