sorry, All we know is he had a Qur'an, the first English translation, and not an accredited one.
Yes, he met with Mideast leaders, and if he discussed the religion at all, he got their version, or what they wanted to tell him.
You can't learn much about Islam by reading the Qur'an, in fact, if you don't know the proper way to read it, much of what you read is wrong.
He had no way of knowing.
He had no way of learning about Muhammed, remember him, he is not in the Qur'an, mention only 4 times, but nothing about him.
Muhammeds Biography was not translated into English untill 1955.
Remember, a Muslim is obligated to lie to the Kafir about the intents of the religion. ( Taquyyia).
And much easier to lie about Islam 200 years ago than it is now.
You underestimate Jefferson considerably. He was brilliant, learned languages just to read in them, & carried out a massive worldwide correspondence.
From the book I noted above:
"Summary
"In this original and illuminating book, Denise A. Spellberg reveals a little-known but crucial dimension of the story of American religious freedom-- a drama in which Islam played a surprising role. In
1765, eleven years before composing the Declaration of Independence, Thomas Jefferson bought a Qur'an. This marked only the beginning of his
lifelong interest in Islam, and he would go on to acquire numerous books on Middle Eastern languages, history, and travel, taking extensive notes on Islam as it relates to English common law. Jefferson sought to understand Islam notwithstanding his personal disdain for the faith, a sentiment prevalent among his Protestant contemporaries in England and America. But unlike most of them, by 1776
Jefferson could imagine Muslims as future citizens of his new country. Based on groundbreaking research, Spellberg compellingly recounts how a handful of the Founders, Jefferson foremost among them, drew upon Enlightenment ideas about the toleration of Muslims (then deemed the ultimate outsiders in Western society) to fashion out of what had been a purely speculative debate a practical foundation for governance in America. In this way,
Muslims, who were not even known to exist in the colonies, became the
imaginary outer limit for an unprecedented, uniquely American religious pluralism that would also encompass the actual despised minorities of Jews and Catholics. The rancorous public dispute concerning the inclusion of Muslims, for which principle Jefferson's political foes would vilify him to the end of his life, thus became decisive in the Founders' ultimate judgment not to establish a Protestant nation, as they might well have done." -- From publisher's web site."
(My emphasis - more @ the URL cited in the post above)
See also
https://www.newsweek.com/jefferson-...unding-fathers-defense-muslims-matters-619541
"By this he meant that religious liberty and political equality would not be exclusively Christian. For
Jefferson asserted in his autobiography that his original legislative intent had been "to
comprehend, within the mantle of its protection, the Jew and the Gentile, the Christian and Mahometan [Muslim], the Hindoo, and Infidel of every denomination."
"By defining
Muslims as future citizens in the 18th century, in conjunction with a resident Jewish minority, Jefferson expanded his "universal" legislative scope to
include every one of every faith.
"Ideas about the nation's religiously plural character were tested also in Jefferson's presidential foreign policy with the Islamic powers of North Africa. President
Jefferson welcomed the first Muslim ambassador, who hailed from Tunis, to the White House in 1805. Because it was Ramadan, the president moved the
state dinner from 3:30 p.m. to be "precisely at sunset," a recognition of the Tunisian ambassador's religious beliefs, if not quite America's first official celebration of Ramadan."
(My emphasis - more @ the URL)
That pretty much covers it, yes?