SB 4.11.8
nasmat-kulocitam tata
karmaitat sad-vigarhitam
vadho yad upadevanam
arabdhas te ’krtainasam
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
My dear son, the killing of the sinless Yaksas which you have undertaken is not at all approved by authorities, and it does not befit our family, which is supposed to know the laws of religion and irreligion.