Valmiki Ramayana Bala Kanda Sarga 43 Shloka 7
Original Shlokaसा तस्मिन् पतिता पुण्या पुण्ये रुद्रस्य मूर्धनि।।1.43.7।। हिमवत्प्रतिमे राम जटामण्डलगह्वरे।
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राम O Rama, सा पुण्या that sacred river Ganga, हिमवत्प्रतिमे resembling Himavat mountain, जटामण्डलगह्वरे cave of the locks of hair, तस्मिन् on that, रुद्रस्य Siva's, पुण्ये sacred, मूर्धनि head, पतिता fell.
O Rama that sacred river (Ganga), descended on to the depths of the matted locks on the holy head of Siva resembling the mount Himavan.