إن شاء أخذه بجميع الثمن وإن شاء رده
Translation: The buyer may retain the goods at the full stated price or return them.
Under Abu Hanifah, the buyer has two paths:
1. Keep the goods for the entire agreed price.
2. Exercise the option to return them, subject to the usual requirements for rescission.
On this view, discovery of the inflated basis does not automatically rewrite the agreed price. Abu Yusuf takes a different approach.