Aladdin

Aladdin must have work, the magician told Aladdin's mother. He can work for me.
The magician took Aladdin to the hills. He told him to get an old lamp from a cave. Aladdin was afraid so the magician put a ring on his finger to help him. Aladdin got the lamp, then... bang The magician closed the door of the cave. By accident Aladdin rubbed the ring and suddenly a big red genie appeared.
How did the genie of the ring and the genie of the lamp help Aladdin? How did a poor boy marry a princess? And what happened when the magician heard about all this and came back to China to get the lamp?