No right of pre-emption except after the sale

Question:
He says: Honorable Shaykh, may Allah grant you success, regarding the right of pre-emption: If the one with the right of pre-emption knows that his partner intends to sell his share, should he wait and not show his partner any desire to buy, for fear that the partner will increase the price of the share?

Answer:
Until it is offered in the market, then he exercises his right of pre-emption and buys it for the same price. There is no right of pre-emption except after the sale; as for before the sale, there is no right of pre-emption.