No! …: This is clearly intended to close the conversation begun in verse 7. However, if “No!” would be regarded as too rude and abrupt, translators should use whatever expression or device is recognized as ending such a conversation in their language.

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.