Lending mobile phone top-up cards

The questioner:
Honorable Shaykh, may Allah grant you success. He says: Some people lend mobile phone top-up cards on the condition that the borrower sells them and then returns the price to him for more than their value. What is the ruling? Some people lend top-up cards on the condition that he sells them.

The Shaykh:
What? Top-up cards

The questioner:
for mobile phones.

The Shaykh:
If he lends the cards and he returns cards like them to him, there is nothing wrong with that. Or if he sells him the cards for a spot price or a deferred price, there is nothing wrong with that, because this commodity, either he sells it, or he lends him cards for cards, there is nothing wrong with that, yes.