Enmity

Your archenemy is your lower self that resides between your two sides.

رسولُ اللَّهِ صلى اللَّه عليه وآله :  ما عَهِدَ إلَيَّ جَبرَئيلُ عليه السلام في شَي‏ءٍ ما عَهِدَ إلَيَّ في مُعاداةِ الرِّجالِ . الكافي : 2 / 302 / 11 .

 The Prophet (SAWA) said, ‘Gabriel has not exhorted me against anything like he has exhorted me against showing enmity towards people.’ al-Kafi, v. 2, p. 202, no. 11

رسولُ اللَّهِ صلى اللَّه عليه وآله :  مَن لاحَى الرِّجالَ سَقَطَت مُروءَتُهُ وذَهَبَت كَرامَتُهُ . الأمالي للطوسي : 512 / 1119 .

 The Prophet (SAWA) said, ‘Whoever shows hostility towards others, his gallantry wanes and his kindness vanishes.’ Amali al-Tusi, p. 512, no. 1119

 رسولُ اللَّهِ صلى اللَّه عليه وآله :  ما نُهِيتُ عن شَي‏ءٍ بَعدَ عِبادَةِ الأوثانِ ما نُهِيتُ عَن مُلاحاةِ الرِّجالِ . تحف العقول : 42 .

 The Prophet (SAWA) said, ‘After idol-worship, I have not been prohibited with anything as significantly as I have been prohibited hostility towards people.’ Tuhaf al-Uqul, no. 42

رسولُ اللَّهِ صلى اللَّه عليه وآله :  أعدى‏ عَدوِّكَ نَفسُكَ الَّتي بَينَ جَنبَيكَ . تنبيه الخواطر : 1 / 259 .

 The Prophet (SAWA) said, ‘Your archenemy is your lower self that resides between your two sides.’ Tanbih al-Khawatir, v. 1, no. 259