Tobit 11:1-8

1 After this Tobias went on his way, praising God because he had made his journey a success. And he blessed Raguel and his wife Edna. So he continued on his way until they came near to Nineveh.
2 Then Raphael said to Tobias, "Are you not aware, brother, of how you left your father?
3 Let us run ahead of your wife and prepare the house.
4 And take the gall of the fish with you." So they went their way, and the dog went along behind them.
5 Now Anna sat looking intently down the road for her son.
6 And she caught sight of him coming, and said to his father, "Behold, your son is coming, and so is the man who went with him!"
7 Raphael said, "I know, Tobias, that your father will open his eyes.
8 You therefore must anoint his eyes with the gall; and when they smart he will rub them, and will cause the white films to fall away, and he will see you."