Dhammapada Verse 91
The Story of Thera Mahakassapa
The Buddha once spent the vassa at Rajagaha with a number of bhikkhus. About two weeks before the end of the vassa, the Buddha informed the bhikkhus that they would soon be leaving Rajagaha and told them to prepare for departure. Some bhikkhus stitched and dyed new robes, some washed the old robes. When some bhikkhus saw Mahakassapa washing his robes, they speculated, "There are so many people inside and outside Rajagaha who love and respect Thera Mahakassapa and are constantly looking to all his needs; is it possible that the Thera would leave his lay devotees here and follow the Buddha elsewhere?"