18:19] 1+8+1+9=19 When we resurrected them, they asked each other, "How long have you been here?" "We have been here one day or part of the day," they answered. "Your Lord knows best how long we stayed here, so let us send one of us with this money to the city. Let him fetch the cleanest food, and buy some for us. Let him keep a low profile, and attract no attention. [18:20] "If they discover you, they will stone you, or force you to revert to their religion, then you can never succeed."