When Yang Xiu arrived at Chang'an some three months after his departure from Yi Province, Emperor Wen refused to say anything to him while meeting him. Emperor Wen then sent messengers to severely rebuke him, and Yang Xiu begged for forgiveness. Yang Guang and the other imperial princes publicly begged for forgiveness on Yang Xiu's account as well, but Yang Guang secretly made two dolls with the names of Emperor Wen and Yang Liang the Prince of Han and curses against them and buried the dolls, and then had Yang Su dig them out and submit the dolls to Emperor Wen, along with evidence that Yang Xiu had made plans to attack the capital at some point. Around the new year 603, Emperor Wen reduced Yang Xiu to commoner rank and put him under house arrest within the Bureau of Eunuchs, not permitting him to meet with his wife and children. Yang Xiu submitted a petition for forgiveness, particularly asking to again see his favorite son, whose nickname was Guazi (瓜子). Further incensed by the petition, Emperor Wen issued an edict accusing Yang Xiu of 10 crimes, particularly stating, "I do not know what kind of relatives 'Yang Jian' and 'Yang Liang' are to you." Yang Su also took this opportunity to falsely accuse certain political enemies to be Yang Xiu's associates and had them banished.