Is it impermissible to buy goods on credit and sell them for cash at a price lower than the purchase price in order to pay off installments from the interest on money deposited in the bank? And is this considered an 'ayn sale?

The question involves two matters:

1. The ruling on purchasing an item on credit with the intention of selling it and benefiting from its price (Tawarruq): The preponderant view is that it is permissible, provided that the second buyer is not the first seller; otherwise, it would be a "Inah" transaction.

2. The ruling on placing money in interest-based banks and benefiting from interest-based returns: Its ruling has been clarified in previous fatwas.