SB 8.16.49
varjayed asad-alapam
bhogan uccavacams tatha
ahimsrah sarva-bhutanam
vasudeva-parayanah
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
During this period, one should not unnecessarily talk of material subjects or topics of sense gratification, one should be completely free from envy of all living entities, and one should be a pure and simple devotee of Lord Vasudeva.