عَنْ أَبِي هُرَيْرَةَ رَضِيَ اللَّهُ عَنْهُ قَالَ: قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: «مَا بَيْنَ الْمَشْرِقِ وَالْمَغْرِبِ قِبْلَةٌ» . رَوَاهُ التِّرْمِذِيُّ

Abu Huraira reported God’s Messenger as saying

When you see anyone buying or selling in a mosque, say, “May God not make your trading profitable!” And when you see anyone calling out in it about something lost, say, “May God not restore it to you.” Tirmidhi and Darimi transmitted it.