عَنْ أَبِي هُرَيْرَةَ قَالَ: سَمِعْتُ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ يَقُولُ: «مَنْ جَاءَ مَسْجِدي هَذَا لم يَأْته إِلَّا لِخَيْرٍ يَتَعَلَّمُهُ أَوْ يُعَلِّمُهُ فَهُوَ بِمَنْزِلَةِ الْمُجَاهِدِ فِي سَبِيلِ اللَّهِ وَمَنْ جَاءَ لِغَيْرِ ذَلِكَ فَهُوَ بِمَنْزِلَةِ الرَّجُلِ يَنْظُرُ إِلَى مَتَاعِ غَيْرِهِ» . رَوَاهُ ابْنُ مَاجَهْ وَالْبَيْهَقِيُّ فِي شُعَبِ الْإِيمَانِ

Abu Huraira said that he heard God’s Messenger say, “If anyone comes to this mosque of mine, coming only for some good which he will learn or teach, he ranks a mujahid in God’s path; but if anyone comes for some other purpose, he ranks as a man who looks at another’s property.” Ibn Majah and Baihaqi, in Shu'ab al-iman, transmitted it.