Where does the Bible say this?
She WAS at the Crucifixion when ten of the Disciples weren't.
NOBODY was at the Resurrection.
Catholic theology:1) the bible doesn’t mention it, so it could had happened:2) assume it did, and run with it
Who was at the Last Supper?
Mark 14:
16 The disciples then went off, entered the city, and found it just as he had told them; and they prepared the Passover.
17 When it was evening, he came with the Twelve.
18 5 And as they reclined at table and were eating, Jesus said, "Amen, I say to you, one of you will betray me, one who is eating with me."
The Apostles only
She WAS at the Crucifixion when ten of the Disciples weren't.
Don't get carried away with who was where and when who was where. After all it was Mary Magdalene who Jesus first appeared to after His ressurection while Scripture remains silent concerning His mother.
NOBODY was at the Resurrection.
Scripture is silent on this subject. Scripture is also silent on Mary, his mother. Does that mean her entire story had been told?