Valmiki Ramayana Bala Kanda Sarga 66 Shloka 9
Original Shlokaदक्षयज्ञवधे पूर्वं धनुरायम्य वीर्यवान्। रुद्रस्तु त्रिदशान् रोषात्सलीलमिदमब्रवीत्।।1.66.9।।
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पूर्वम् formerly, दक्षयज्ञवधे at the time of destruction of Daksha's sacrifice, वीर्यवान् possessing great prowess, रुद्र: Rudra, धनु: bow, आयम्य lifting, त्रिदशान् addressing devatas, रोषात् from anger, सलीलम् sportively, इदम् these words, अब्रवीत् spoke.
Earlier at the time of destruction of Daksha's sacrifice, Rudra endowed with great prowess lifted this bow sportively and spoke to the gods.