Sahih al-Bukhari Book 46, Hadith 18
The Prophet (ﷺ) said, "The most hated person in the sight of Allah is the most quarrelsome person."
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."
(the wife of the Prophet) Allah's Messenger (ﷺ) heard some people quarreling at the door of his dwelling. He came out and said, "I am only a human being, and opponents come to me (to settle their problems); maybe someone amongst you can present his case more eloquently than the other, whereby I may consider him true and give a verdict in his favor. So, If I give the right of a Muslim to another by mistake, then it is really a portion of (Hell) Fire, he has the option to take or give up (before the Day of Resurrection).