Which of the following is considered the "Greater Jihad" (Al-Jihad al-Akbar) according to a famous Hadith?

1. Military defense
2. Spreading the message of Islam
3. The struggle against one’s own soul and desires
4. Intellectual debate

A well-known Hadith states that the Prophet Muhammad (PBUH) identified the greater jihad Al-Jihad al-Akbar as the struggle against one’s own self. This internal struggle involves overcoming negative desires and improving one’s character. It is considered greater than any external military struggle. Thus, the correct answer is the struggle against one’s own soul and desires.