Urwa ibn al-Zubayr عروة بن الزبير · The Book of Financial Transactions

"Two traders have the choice as long as they have not separated, or, they have chosen to conclude the transaction."

"The Messenger of Allah forbade selling something from the spoils of war prior to its distribution, having intercourse with a pregnant woman until she gives birth, and (eating) the flesh of any predator that has fangs.

"The Messenger of Allah said: 'Pre-emption is to be given in everything that is shared, whether it is a house or a garden. It is not right to sell it before informing one's partner, and if he sells it he (the partner) has more right to it, unless he gives Permission to sell it to someone else.