Yes, truly, the apostles were baptized, as Clement the Stromatist relates in the fifth book of the Hypotyposes. For, in explaining the apostolic statement, I thank God that I baptised none of you, he says, Christ is said to have baptised Peter alone, and Peter Andrew, and Andrew John, and they James and the rest.
St. John Moschus
Spiritual Meadow, Book V
Chapter 176
Quote from lost work of Clement of Alexandria