It is narrated from Sayyiduna Abu Hurairah, may Allah be pleased with him, that the Messenger of Allah, peace and blessings be upon him, said: Whoever comes to our mosque to learn or teach goodness is like one who strives in the way of Allah, and whoever comes for any purpose other than this is like one who is looking at something that does not belong to him. The words of another narration are: And whoever comes for any other purpose is like a person who is looking at someone else's belongings.