'On seeing the rising Sun in the deep forest, mistaking him to be a fruit, you wanted to seize it, when you were young. You suddenly flew into the sky and went flying towards the Sun. [4-66-21]
तदा शैलाग्रशिखरे वामो हनुरभज्यत | ततो हि नामधेयं ते हनुमानिति कीर्त्यते || ४-६६-२४
'You fell on the edge of the mountain peak and your left chin got broken. Since then you are widely known as Hanuman (one who has a wounded chin). [4-66-24]
The Windgod who is a carrier of fragrance and breaker of trees became very angry on seeing (the injury on) you and stopped blowing in the three worlds. [4-66-25]