The one who Allaah grants success in making correct statements and putting forth righteous deeds, is from those who have been granted success and those who have been guided to contentment.
30 Days of Guidance Book 1: Beliefs
Every prophet stands under this covenant and agreement that if Muhammad, comes forth and that prophet is still alive that they would follow him and his revealed guidance.
...As those lines which diverted away on the left and right, these are the paths of the people of misguidance, the paths of the people of sins, and the people of innovation.
The second benefit to be taken from them is the importance of the warning against the sects and groups upon innovation in the religion, those innovating sects.
As such, the Jamaa’ah means the Companions of the Messenger of Allaah, the Successors to the Companions, and those who come after them of the leading scholars and people of knowledge.
So the command to hold firmly to His Rope means to His religion. And His religion is what He sent down within His Book, and upon the tongue of His Messenger...