Someone entered the Masjid late and jammed himself among the people who were performing Salah in the first row so that he can stand right behind the I

Q: What is the ruling on someone who enters the Masjid (mosque) late and jams himself among the people who are performing Salah (Prayer) in the first row so he can stand right behind the Imam (the one who leads congregational Prayer) despite his late entrance?

A: When a Muslim comes to perform the Jumu`ah (Friday) Prayer, he is not permitted to overstep the people, as it is considered an offense to those who are performing Salah and it may either distract them from (Part No. 7; Page No. 103) concentrating on the Khutbah (sermon) being given or disturb their Salah. It was reported in the Musnad (Hadith compilation) of Imam Ahmad: A man came and he was stepping over the people while the Prophet (peace be upon him) was delivering the Khutbah. He said to him: "Sit down. You have harmed the people and have come late." Also, it was mentioned in the Musnad and the Sunan (Hadith compilations classified by jurisprudential themes) of Abu Dawud on the authority of `Abdullah ibn `Amr (may Allah be pleased with them both) that the Prophet (peace be upon him) said: There are three kinds of people who attend the Jumu`ah Prayer: A man who attends it to chat with others, thus, his Salah is void; a man who attends it to perform Du`a' (supplication) and Allah (Exalted be He) may or may not accept his Du`a'; and a man comes to the Jumu`ah Prayer with tranquility and attentiveness, he neither oversteps any Muslim, nor harms anyone, his Salah becomes a Kaffarah (expiation) for him till the next Jumu`ah Prayer and three days more; for Allah (Exalted be He) says: Whoever brings a good deed (Islâmic Monotheism and deeds of obedience to Allâh and His Messenger صلى الله عليه وسلم) shall have ten times the like thereof to his credit May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.