The Prophet (ﷺ) decreed that one should not eat two dates together at a time unless he gets the permission from his companions (sharing the meal with him).
The Prophet (ﷺ) said, "Whoever manumits his share o a jointly possessed slave, it is imperative on him to manumit the slave completely if he has sufficient money to pay the rest of its price which is to be estimated justly. He should pay his partners their shares and release him (the freed one).