Anas bin Malik reported,

Gabriel ﷺ came to the Messenger of Allah ﷺ while he was playing with the other boys. He took hold of him, threw him to the ground, opened his chest, extracted his heart, and removed from it a clot. He said, "This is the share of Satan in you." Then he washed it in a basin of gold with the water of Zamzam, sealed it up, and returned it to its place.The boys came running to his mother, meaning his wet-nurse, and said, "Muhammad has been killed!" They went out to meet him, and his color had changed.Anas said, "I used to see the trace of that stitching on his chest."

Muslim 413

Sahih

حدثنا شيبان بن فروخ حدثنا حماد بن سلمة حدثنا ثابت البناني

عن أنس بن مالك

أن رسول الله ﷺ أتاه جبريل ﷺ 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 أرئي أثر ذلك المخيط في صدره

مسلم 413صحيح
Contents
Reference
Commentary
Ayat
Collection
Sahih Muslim
Book
Faith
Chapter
Isra of the Messenger of Allah ﷺ to the heavens and the obligation of prayers
Numbering
Darussalam 413
Muslim 413