hadith
4621
۞
Imam Ali (AS) said, Beware of surrounding yourself with evil, for you will be affected by it yourself before [harming] your enemy and you will destroy your religion by it before conveying it to others.
الإمامُ عليٌّ (عَلَيهِ الّسَلامُ) : إيّاكَ وَ مُلابَسَةَ الشَّرِّ فَإنَّكَ تُنيلُهُ نَفْسَكَ قَبْلَ عَدُوِّكَ وَ تُهْلِكُ بِهِ دينَكَ قَبْلَ إيصالِهِ إلى غَيْرِكَ