As an aside, can you elaborate more on the incident you allude to in the OP? It would help figure out a concrete scenario and I wasn't able to find much with some quick googling.
Gladly

:
https://groups.google.com/forum/#!msg/soc.history.what-if/cpT0eH2MRyg/7W0tDUP7Ky4J
(Direct quoting here below.)
On Persia and Central Powers jihadism:
"The notion of global Islamic solidarity behind the Ottoman Sultan-Caliph was
a fantasy, particularly in the Shia world. Rauf Bey's incursion across the
border had reignited centuries-old hostility between Sunni Turks and Shia
Persians, very nearly pushing Persia into war--against the Ottoman
Empire. As Count Georg Kanitz, the German military attaché, reported from
Baghdad (en route for Tehran) in July 1915, Persians and Germans alike were
aghast at the 'wretched tragedy of plunder, arson, the defilement of women,
and senseless bloodbaths' which had come in the wake of the Turkish invasion.
Reports were filtering in from Karbala and Najaf that the Shia clerics,
horrified by Turkish misdeeds against their co-religionists in Persia, were
reconsidering their endorsment of the holy war, and preparing to make their
peace with the British invaders. All in all, Kanitz concluded, 'it was a
miralce that Persia had not long since decalred war on Turkey.' With this in
mind, simply keeping Tehran *out* of the war (as in securing the recall of
Rauf Bey) must count as something of an achievment for the Germans, even if a
hollow one." Sean McMeekin, *The Berlin-Baghdad Express: The Ottoman Empire
and Germany's Bid for World Power*, (Harvard UP 2010), pp. 283-284
https://books.google.com/books?id=6k5HzkboGvcC&pg=PA283
"Furthermore, holy war propaganda had mobilized only a handful of Arabs and
Kurds along the Turkish-Persian border, along with some south Persian tribes.
Elsewhere, the call for jihad had produced little response, falling victim to
Persian fears of the Turks and to the Shite-Sunni schism..." Donald M.
McKale, *War by Revolution: Germany and Great Britain in the Middle East in
the Era of World War I* (Kent State UP 1998), p. 134
https://books.google.com/books?id=j6-bKj5eaqcC&pg=PA134
Nevertheless, national-minded Persians hated the British and Russian
domination of their country (although they didn't want to trade it for
Turkish domination). Persia did not want to fight the Central Powers. The
point is that it might be forced to if the Germans did not restrain their
Turkish allies. In the end, they did: "Rauf Bey spent the summer in Persia;
but in September, due to mounting German pressure, the Ottoman High Command
ordered him to return to Khanaqin..."
http://www.turkeyswar.com/campaigns/persia.html