Ibn Umar, may Allah be pleased with them, narrated that the Messenger of Allah, may the peace and blessings of Allah be upon him, said:
A Muslim should consider the etiquettes of assemblies and spread them among his brothers wherever he is. These high morals are based on five basic rules, and other sub-rules follow them.
This verse was revealed concerning the assemblies of remembering Allah, as Qatada and others say; if they saw one of them coming, they would refrain from letting others sit close to the Messenger of Allah, may the peace and blessings of Allah be upon him, Allah ordered them to let a space for each other.
The meaning; O you who truly believe in Allah, If you are told to make spaces in your assemblies so that they accommodate a large number of your brothers, then obey and respond, because this will lead you to reach the mercy of your Lord, the vastness of your homes in Paradise, and in everything you love.