ألا و إنّ الجهاد ثمن الجنّة فمن جاهد نفسه ملكها و هي اكرم ثواب اللّه لمن عرفها.
Imam Ali (as):
Indeed, Jihad (i.e. combat against the self) is the price for Paradise, so whosoever combats his self, achieves paradise, which is the most noble reward of God for those who perceive its glory.
Source:
Ghurar al-Ḥikam
Vol1
P1289
ID: 15118