Dhammapada Verse 111
The Story of Khanu-Kondanna
Thera Kondanna, after taking a subject of meditation from the Buddha, went into the jungle to practice meditation and there attained arahatship. Coming back to pay homage to the Buddha, he stopped on the way because he was very tired. He sat on a large stone-slab, his mind fixed in jhana concentration. At that moment five hundred robbers after looting a large village came to the place where the thera was. Taking him for a tree stump they put their bundles of loot all over and around the body of the thera. When day broke they realized that what they took to be a tree stump was, in fact, a living being. Then again, they thought it was an ogre and ran away in fright.