A suspect accused of plotting the Michigan Halloween terror attack allegedly “sought guidance” on when to carry out the violence from the father of a local “extremist” Islamic preacher who has previously called on American Muslims to wage jihad.

Mohmed Ali, 20, and an unnamed juvenile had a conversation last week about reaching out to the father of the so-called “Islamic ideologue” to ask for advice on timing for a “good deed,” the FBI alleged in a criminal complaint.

The feds didn’t specifically identify the Islamic ideologue but described a research paper on radicalization that clearly named the radical preacher as ISIS supporter, Ahmad Musa Jibril, according to the court filing.

Jibril’s father, Shaykh Musa Abdullah Jibril, who also isn’t named in the complaint, founded a mosque in Dearborn, Michigan.

The juvenile is said to have called the preacher’s father on Oct. 29 to tell him he intended to do a “good deed” but was unsure of “what day to do it,” the court papers charge.

The preacher’s dad then allegedly told the juvenile that he shouldn’t wait and to carry out the deed.

There is no suggestion that the preacher’s dad was aware of the alleged plot.

Still, the FBI alleged the pair went on to use the “guidance” to forge ahead with plans for the attack, according to the complaint.

When the juvenile was relaying his conversation with the preacher to Ali, Ali acknowledged that “if the Islamic Ideologue’s father knew about the actual plan to which Ali and [the juvenile] had agreed, the Islamic Ideologue’s father would not have said what he did when [the juvenile] asked him about the timing of doing a ‘good deed’,” the filing states.

The younger Jibril has a history of spewing hate-filled sermons, including some that reportedly helped inspire the London Bridge terror attack.

The preacher also previously called on Muslims in the US to wage jihad against the “infidel West” and for followers to turn away from what he described as a watered-down “American-Zionist Islam” that ignores the idea of jihad.

Meanwhile, Ali is one of several that have been charged this week over the widespread alleged terrorism-style attack.

Ali and two other Michigan suspects — Ayob Nasser, 19, and Majed Mahmoud, 20 — are charged with conspiracy to provide material support and resources to a designated terrorist organization and receiving and transferring guns and ammunition for terrorism.

The suspects are accused of sharing ISIS propaganda in group chats on Discord — and scouting LGBTQ+-friendly locations for a possible attack.

Investigators say two juveniles, identified only as “Person 1” and “Person 2” in court documents, were also involved in the alleged plans.

Authorities in New Jersey have since charged two more young men — Tomas Jimenez-Guzel and Saed Mirreh, both 19 — over their alleged connections to the plot.

Jimenez-Guzel and Mirreh — upper-crust student athletes from tony Montclair — were charged Wednesday with conspiring to provide material support to a designated terrorist organization.

Jimenez-Guzel, who was nabbed trying to board a flight to Turkey, faces an additional charge of attempting to provide material support.