Valmiki Ramayana Bala Kanda Sarga 54 Shloka 1
Original Shlokaकामधेनुं वसिष्ठोऽपि यदा न त्यज्यते मुनि:। तदास्य शबलां राम विश्वामित्रोऽन्वकर्षत।।1.54.1।।
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राम O Rama, वसिष्ठ: मुनि: अपि sage Vasishta also, कामधेनुम् wishfulfilling cow, यदा when, न त्यज्यते did not leave, तदा then, विश्वामित्र: Visvamitra, शबलां Sabala, अन्वकर्षत pulled.
"O Rama when sage Vasishta did not consent to part with the wishfulfilling cow, Viswamitra dragged Sabala by force. Viswamitra attempts to take Kamadhenu by force--Kamadhenu creates hordes of warriors -- the army of Viswamitra gets killed.