... It was all one country, which the jurisprudents used to call Dar Al-Islam ...
A minor but important correction must be made here.
JURISTS instead of "jurisprudents".
'Jurists' derives from 'Jurisprudence' = A body of law.
Jurist = A doctor of law = FAQEEH in Arabic.
Islamic Jurisprudence translates in Arabic as FIQH ISLAMIAH. Aside from the reality that the "Islamic" FIQH is all a bundle of nonsense,
Muslims follow five kinds of FIQH:
[Mullahs say a loud "NO, NO" to any semblance of a Qur'anic FIQH.]
The fountain spring of today's NUMBER TWO ISLAM, the Man-made, Counterfeit, Irrational, Ritualistic, Non-Qur'anic, Fatalistic, Superstitious Religion called ISLAM is this nonsensical FIQH.
They are obvious sects, but in order to deceive the gullible, Mullahs call them SCHOOLS OF THOUGHT! And it might be impossible to find people more gullible than the Muslim masses.
Mullah Qaradhawi is the chief Jurist (FAQEEH) of the Muslim World today. Like all Mullahs, throwing the Glorious Book of Allah behind his back, Qaradhawi heads the International Beardo Brigade.
25:30 And the Messenger will say, “O My Lord! These are my people, the ones who had forsaken this Qur’an making it of no account." [Mahjoor = Disabled = Abandoned = Neglected = Forsaken. They had immobilized it like villagers who bind a cow by tying her front foot to her horn]
6:159 (There is only one straight path.) O Messenger! Those who break the unity of their Deen and become sects, you have nothing to do with them whatsoever. Their case will go to God and He will then tell them what they had been doing.
30:32 Those who split up their religion becoming sects, each sect delighting in whatever beliefs they have. [3:104, 6:160, 23:53, 42:13. Sectarianism is invariably based on taking humans as ‘authorities’]