He said: The Greek does not say who he is speaking to, but unless the words simply represent his thoughts (which is quite possible), he is surely speaking to Anna, as Good News Translation makes clear.

That he has been detained may be rendered “that something is preventing him from returning.”

Quoted with permission from Bullard, Roger A. and Hatton, Howard A. A Handbook on Tobit. (UBS Helps for Translators). New York: UBS, 2001. For this and other handbooks for translators see here.