《左传·成公·成公十年》
鲁国人认为这是耻辱，所以《春秋》不加记载，这是隐讳国耻。
鲁人辱之，故不书，讳之也。
The people of Lu regarded this as shameful, and therefore the Spring and Autumn Annals did not make a record of it, demonstrating their desire to cover up a shameful incident in Lu's history.