Morning and peace to you all!
I'm not sure, but it seems like perhaps you're confusing the two, resurrection and the changing, dear 'Kassad (peace to you, both!), because the latter is what occurred with Enoch and Elijah. Which Mary COULD have experienced... had she not died. But your comment says the belief is that she DID die... and was raised up 3 days later... which would be a resurrection, as dear 'Mom (peace, luv!) pointed out. And if THAT occurred, surely John would have written about it, as he would have still been alive at the time, even if none of the others were. If not him, then perhaps her sons, James and/or Jude, would have... but there is nothing.
Even so, Mary was not given greater position than the apostles... and none of them have been resurrected, yet (or at least, no one's making THAT claim). Indeed, on
at least two occasions, our Lord implied that she wasn't as great as some wanted to make her out to be:
"Now [Jesus’] mother and brothers came to see him, but they were not able to get near him because of the crowd. Someone told him, “Your mother and brothers are standing outside, wanting to see you.”
"He replied, “My[i] mother and brothers are those who hear God’s word and put it into practice].” Luke 8:19-21And...
"As [Jesus] was saying these things, a woman in the crowd called out, “Blessed is the mother who gave you birth and nursed you.”
He replied, “Blessed [i]rather are those who hear the word of God and obey it.” Luke 11:27, 28Not saying she wasn't great, just not AS great, again, as some wanted to make her OUT to be, THEN. And, apparently, because they don't listen to HIM... but to others/themselves... some want to make her out to be NOW.
Dear tec's (peace, luv!) comment as to Mary's care being entrusted to Lazarus makes sense (why be concerned about three more days of care?) but you don't state WHEN such ones say she died: soon after he entrusted her care to Lazarus? Or many years later, which would make his entrusting of her care reasonable?
If folks had said she was CHANGED... so as to never SEE death... then we could not dispute that; because that did occur for some (a few). To say that she DIED and was taken up by Christ three days later, however, is another thing. Because, again, it means she was resurrected.
And if THAT was the case, we would have had a witness to that, one way or another: either someone would have disputed Paul's words that the first resurrection had not yet occurred but would occur at the same time as those living would be changed ("Oh, now, wait, Paul... what about Mary, who was raised up three days after SHE died?!")... or John would have mentioned it, versus seeing those "under the altar" (and so, still sleeping [in death]).
Since the belief originated in the 5th century... and we KNOW how "superstitious" and all folks were around that time and for a long time after... I think WE should keep a "sound" mind and not buy into what is pretty obviously a teaching of FALSE christs and FALSE prophets, and so designed to "mislead, if POSSIBLE, EVEN the chosen ones." And, apparently, such has worked, because the veneration of Mary is tantamount with some and has permeated sometimes even to above Christ himself.
There are no secrets with Christ, however, with regard to his Body. None at all. Because as HE said:
"You are my friends if you do what I command. I no longer call you servants, because a servant does not know his master’s business. Instead, I have called you friends, for everything that I learned from my Father I have made known to you." John 15:14, 15So he kept NOTHING from them when he was with them of those things they could bear. He ALSO said, as to MORE things, that the Father would send him AGAIN, in the SPIRIT (as the HOLY Spirit)... to lead us into ALL truth. This teaching, however, about Mary being resurrected three days after death... is from men. NOT the Spirit.
And so because of this... I personally can't receive it as truth. I don't think you can, either, which is why you're questioning it. If the Spirit bore witness with YOUR spirit that it was TRUE... you wouldn't have even had to ask but simply shared the truth of it with the rest of us ("Hey, dear ones, I received this...

").
I hope this helps and, again, peace to you!
YSSFS of Christ,
Shellamar