There is one for Prophets in general, I don't know if there is one that refers specifically to Mohammed
From the Wiki page:
"Muhammad spent the first five years of his life with his foster-mother Halima. Islamic tradition holds that during this period, God sent two angels who opened his chest, took out the heart, and removed a blood-clot from it. It was then washed with Zamzam water. In Islamic tradition, this incident signifies the idea that God purified his prophet and protected him from sin"
Source: Al Mubarakpuri, Safi ur Rahman (2002). Ar-Raheeq Al-Makhtum (The Sealed Nectar). Darussalam. p. 74. ISBN 9960-899-55-1