Once on a time the Rishi Uddalaki, gifted with great intelligence, approaching his son Nachiketa, said to him, Do you wait upon and serve me.
ऋषिरुद्दालकिर्दीक्षामुपगम्य ततः सुतम्। त्वं मामुपचरस्वेति नाचिकेतमभाषत॥