´Narrated Abu Miljaz:` that a man sat in the middle of a circle so Hudhaifah said: "Cursed upon the tongue of Muhammad - or - Cursed, by Allah upon the tongue of Muhammad (ﷺ), is he who sits in the middle of a the circle."
Shaykh Dr. Abdur Rahman Freywai
Explanation: 1: This refers to the person who, instead of sitting at the edge of a gathering, steps over people's necks and sits in the middle of the circle, thereby coming between people. However, a person who is being awaited specifically so that he may come and sit in the middle of the gathering is not included in this curse.
Note: (There is a break in the chain of narration between Abu Mujliz and Hudhayfah radi Allahu anhu.)
Source: Sunan al-Tirmidhi – Majlis ‘Ilmi Dar al-Da‘wah, New Delhi Edition, Page: 2753