Sahih al-Bukhari Book 46, Hadith 17
There was an Ansari man called Abu Shu'aib who had a slave butcher. Abu Shu'aib said to him,
"Prepare a meal sufficient for five persons so that I might invite the Prophet (ﷺ) besides other four
persons." Abu Shu'aib had seen the signs of hunger on the face of the Prophet (ﷺ) and so he invited him.
Another man who was not invited, followed the Prophet. The Prophet (ﷺ) said to Abu Shu'aib, "This man
has followed us. Do you allow him to share the meal?" Abu Shu'aib said, "Yes."
"We were in Medina with some of the Iraqi people, and we were struck with famine and Ibn Az- Zubair used to give us dates. Ibn `Umar used to pass by and say, "The Prophet (ﷺ) forbade us to eat two dates at a time, unless one takes the permission of one's companions."
The Prophet (ﷺ) said, "The most hated person in the sight of Allah is the most quarrelsome person."