Ramayana
ततो राक्षसराजेन क्रुद्धेन नृपतिस्तदा । तलेनाभिहतो मूर्ध्नि स रथान्निपपात ह ॥ 7-19-22 ॥
Then the king was struck upon the head with the flat of the hand by the enraged king of the Rakshasas, and he fell down from his chariot.
english translation