תּלמוד אויף יחזקאל 1:27

Question: Until when is 'The deed of the chariot'? Rabbi [Yehudah HaNasi] says, "Until the later, 'And I saw (Ezekiel 1:27).'" Rabbi Yitzchak says, "Until, 'The Chashmal (Ezekiel 1:27).'" We teach until "And I saw (Ezekiel 1:4)," and from there onward we give the general details. There are those who say: "Until, 'And I saw (Ezekiel 1:4)', we give the general details, and from here forward, if he is smart, he understands from his own knowledge; if [is] not [smart], then if he cannot [understand on his own], he cannot [understand it]."