(32) بَابُ: {إِذَا قِيلَ لَكُمْ تَفَسَّحُوا فِي الْمَجَالِسِ فَافْسَحُوا يَفْسَحِ اللَّهُ لَكُمْ وَإِذَا قِيلَ انْشِزُوا فَانْشِزُوا} الآيَةَ
Narrated Ibn `Umar:
The Prophet (ﷺ) forbade that a man should be made to get up from his seat so that another might sit on it, but one should make room and spread out. Ibn `Umar disliked that a man should get up from his seat and then somebody else sit at his place.
Reference: Sahih al-Bukhari 6270
In-book reference: Book 79, Hadith 44
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 8, Book 74, Hadith 287