Ramayana
अमोघो ह्येष सर्वेषां प्राणिनाममितप्रभः । कालदण्डो मया सृष्टः पूर्वं मृत्युपुरस्कृतः ॥ 7-22-43 ॥
"For this rod, infinite in splendor, is unfailing against all living beings; it was created by me of old as the Rod of Time, with Death set at its head."
english translation