إِنَّ مَن أكثر ذِكْر الْمَوْت قَلت حسده وبغيه

“Indeed the one who frequents the remembrance of death : he will decrease in his jealousy and transgression [on others].” Abu Dardaa (radhiyaAllaahu anhu)

Source : Zuhd of Imaam Ahmad : 776