Medieval Christians transmitted Muslim miracle narratives about Muhammad’s youth

Evidence

The Muslims regard this as the first miracle that God — as they say — worked for His servant while he was still young. They say that a small door of the courtyard of the monastery, through which they passed, when the child wanted to go through, by the divine impulse grew so much wider and higher, like an arch, at the presence of the boy, that it seemed to be the gateway to an imperial court, or the entrance to a home of royal majesty. — Norman Daniel, Islam and the West, 508