Rehoboam went to Shechem, for all Israel had come to Shechem to make him king.
When Jeroboam son of Nebat heard of it (for he was still in Egypt, where he had fled from King Solomon), then Jeroboam returned from Egypt.
References for 1 Kings 12:2
And they sent and called him; and Jeroboam and all the assembly of Israel came and said to Rehoboam,
"Your father made our yoke heavy. Now therefore lighten the hard service of your father and his heavy yoke that he placed on us, and we will serve you."