Dhammapada Verse 158
The Story of Thera Upananda Sakyaputta
Upananda was a very eloquent preacher. He used to preach to others not to be greedy and to have only a few wants and would talk eloquently on the merits of contentment and frugality (appicchata) and austere practices (dhutangas). However, he did not practice what he taught and took for himself all the robes and other requisites that were given up by others.
On one occasion, Upananda went to a village monastery just before the vassa. Some young bhikkhus, being impressed by his eloquence, asked him to spend the vassa in their monastery. He asked them how many robes each bhikkhu usually received as donation for the vassa in their monastery and they told him that they usually received one robe each.