Tradition
St. Clement of Alexandria
Fragments
Chapter 10
From J. A. Cramer's Catenæ Græcorum Patrum in Nov. Test. Oxford 1840 Vol. III
On Acts vii. 24. The mystics say that it was by his word alone that Moses slew the Egyptian; as certainly afterwards it is related in the Acts that [Peter] slew with his word those who kept back part of the price of the land, and lied.
Source: Fragments (New Advent)