The Consequences of Hostility Towards Others

Imam Ja’far al-Ṣadiq (peace be upon him) said:
إیّاکُمْ وَالخُصُومَةَ فَإنَّهَا تَشْغَلُ القَلْبَ وَتُورِثُ النِّفاقَ وَتَکْسِبُ الصَّغائِنَ
“Beware of hostility and enmity, for it preoccupies the heart, leads to hypocrisy, and causes hatred. ”
Al-Kāfi, Volume 2, Page 301