Mencius - Book 4, Part 1, Chapter 24

The disciple Yo-chang went in the train of Tsze-âo to Ch'î.

He came to see Mencius, who said to him, 'Are you also come to see me?' Yo-chang replied, 'Master, why do you speak such words?' 'How many days have you been here?' asked Mencius. 'I came yesterday.' 'Yesterday! Is it not with reason then that I thus speak?' 'My lodging-house was not arranged.' 'Have you heard that a scholar's lodging-house must be arranged before he visit his elder?'

Yo-chang said, 'I have done wrong.'
~ James Legge translation via nothingistic.org ~

Go here to read the introductory post to this serialized version of the Works of Mencius.