The Four Schools of Jurisprudence Are Not Among the Seventy-Three Sects

It is established from the Prophet (peace and blessings be upon him) that he said: (The Jews split into seventy-one sects, the Christians split into seventy-two sects, and my Ummah will split into seventy-three sects) Does this warning include one who adheres to a specific school of jurisprudence,For example: the Four Schools of Jurisprudence?
It does not include them. The Messenger (peace and blessings be upon him) meant by the seventy-three sects those who misguide the sects, and the Four Schools of Jurisprudence do not misguide one another.