The Meaning of Fighting in the Path of Allah and Its Manner

Question:
In Sahih Muslim, from Jabir ibn Samurah, Jabir ibn Abdullah, and Mu'awiyah, in their description of the group of truth, they are described as fighting. Is the fighting intended here what comes to mind regarding war and weapons, or is it something else?

Answer:
They fight in the path of Allah, meaning, they fight in the path of Allah, they fight in the path of Allah against those who have strayed from the path of Allah. War is jihad, the lawful jihad.
Q: Does this strengthen the weak hadith: "Jihad continues with every righteous and wicked person," considering that it continues until the Day of Resurrection?
The Shaykh: It continues by the consensus of the Muslims, it continues until the Day of Resurrection, jihad continues until the Day of Resurrection if its causes are present.
Q: And his saying "a group" implies a community, so does that mean fighting is not valid except with an emir?
The Shaykh: It is necessary that jihad be under a lawful leader, with a lawful emir, a lawful leader is necessary.