Sahih al-Bukhari Book 47, Hadith 8
"While at Medina we were struck with famine. Ibn Az-Zubair used to provide us with dates as our
food. Ibn `Umar used to pass by us and say, "Don't eat two dates together at a time as the Prophet (ﷺ) has
forbidden eating two dates together at a time (in a gathering) unless one takes the permission of one's
companion brother."
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).
Ibn `Umar said, "Allah's Messenger (ﷺ) said, 'If one manumits his share of a jointly possessed slave, and can afford the price of the other shares according to the adequate price of the slave, the slave will be completely manumitted; otherwise he will be partially manumitted.' " (Aiyub, a sub-narrator is not sure whether the saying " ... otherwise he will be partially manumitted" was said by Nafi` or the Prophet.)