Ibn Qayyim Al-Jawziyyah (may Allaah have mercy upon him) stated:
“As for Jihaad of the Shaytaan, it consist of two levels:
1. Striving against him by repelling that which he presents to the servant from the affairs of evil doubts and conjecture to the faith (of the servant).
2. Striving against him by repelling that which he presents from the corrupt intentions and evil desires.
Therefore, the first category of striving takes place with having certainty. The second category of striving takes place with having patience. With the fulfillment of both categories, of striving (against the Shaytaan), the servant will become one who is an Imaam (leader) and a Haadi (guide) in the religion.
Just as Allaah has stated (what is translated to mean):
“We have made from amongst them leaders guiding by our command when they were patient and certain about Our signs/verses.”
(Soorah As-Sajdah: 24)
Allaah, glory be to Him, the One far removed from any imperfection, has informed (us) that leadership in the religion is attained by way of having patience and certainty. The patience repels the evil desires and corrupt intentions. The certainty repels the doubts and (false) conjecture.”
Source: Qutoof al-Jiyaad min Hikam wa Ahkaamil-Jihaad – Shaykh Abdur Razzaaq bin Abdil-Muhsin Al-Badr (may Allaah preserve them both) pg. 10