Sahih Muslim – Hadith No : 431

Anas b. Malik reported that Gabriel came to the Messenger of Allah (may peace be upon him) while he was playing with his playmates. He took hold of him and lay him prostrate on the ground and tore open his breast and took out the heart from it and then extracted a blood-clot out of it and said: That was the part of Satan in thee. And then he washed it with the water of Zamzam in a golden basin and then it was joined together and restored to it place. The boys came running to his mother, i. e. his nurse, and said: Verily Muhammad has been murdered. They all rushed toward him (and found him all right) His color was changed, Anas said. I myself saw the marks of needle on his breast.

Hadith In Arabic Text :

حدثنا شيبان بن فروخ، حدثنا حماد بن سلمة، حدثنا ثابت البناني، عن أنس بن مالك، أن رسول الله صلى الله عليه وسلم أتاه جبريل صلى الله عليه وسلم وهو يلعب مع الغلمان فأخذه فصرعه فشق عن قلبه فاستخرج القلب فاستخرج منه علقة فقال هذا حظ الشيطان منك ‏.‏ ثم غسله في طست من ذهب بماء زمزم ثم لأمه ثم أعاده في مكانه وجاء الغلمان يسعون إلى أمه – يعني ظئره – فقالوا إن محمدا قد قتل ‏.‏ فاستقبلوه وهو منتقع اللون ‏.‏ قال أنس وقد كنت أرى أثر ذلك المخيط في صدره ‏.‏

Chapter : The Book of Faith – كتاب الإيمان