SB 9.16.14
tad upasrutya durastha
ha ramety artavat svanam
tvarayasramam asadya
dadrsuh pitaram hatam
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
Although the sons of Jamadagni, including Lord Parasurama, were a long distance from home, as soon as they heard Renuka loudly calling “O Rama, O my son,” they hastily returned to the asrama, where they saw their father already killed.