Valmiki Ramayana Yuddha Kanda Sarga 49 Shloka 20

यः he who, एकवेगेन in one go, पञ्च five, बाणशतानि fund red arrows, विससर्ज released, तस्मात् therefore, कार्तवीर्यात् च by Kartaveerya, लक्ष्मणः Lakshmana, इष्वस्त्रषु in discharging, अधिकः superior.

"He who, in one go released five hundred arrows (with two hand s) is therefore superior to Kartaveerya (with thousand hands) releasing the same arrows."