《左传·昭公·昭公十一年》
孟僖子会见邾庄公，在祲祥结盟，重修从前的友好，这是符合礼的。
孟僖子会邾庄公盟于祲祥，修好，礼也。
Meng Xizi met with Zhuang Gong of Zou, and at Si Xiang they made a covenant to renew their former friendship, which was in accordance with ritual.