Al-Kāfi - Volume 2 > Envy
Hadith #5

5ـ عَلِيُّ بْنُ إِبْرَاهِيمَ عَنْ مُحَمَّدِ بْنِ عِيسَى عَنْ يُونُسَ عَنْ مُعَاوِيَةَ بْنِ وَهْبٍ قَالَ قَالَ أَبُو عَبْدِ الله (عَلَيهِ السَّلام) آفَةُ الدِّينِ الْحَسَدُ وَالْعُجْبُ وَالْفَخْرُ.

5. Ali ibn Ibrahim has narrated from Muhammad ibn ‘Isa from Yunus from Mu’awiyah ibn Wahab who has said the following: “Abu ‘Abd Allah (a.s.) has said, ‘Among the tragedies for religion is envy, feeling self- important and proud.’”