The Apostles indeed cast out devils by the Spirit before, but only by the power which they had from Christ. For when He sent them, it is not said, He gave them the Holy Spirit, but, He gave unto them power. With respect to the Prophets, however, all agree that the Holy Spirit was given to them: but this grace had been withdrawn from the world.
Reproduced in full. Translation: Oxford 1841 (Newman), public domain (Public domain).
Also cites: Hom. li. 1