SB 4.4.31
vadaty evam jane satya
drstvasu-tyagam adbhutam
daksam tat-parsada hantum
udatisthann udayudhah
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
While people were talking among themselves about the wonderful voluntary death of Sati, the attendants who had come with her readied themselves to kill Daksa with their weapons.
Purport by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
The attendants who came with Sati were meant to protect her from calamities, but since they were unable to protect their master’s wife, they decided to die for her, and before dying they wanted to kill Daksa. It is the duty of attendants to give protection to their master, and in case of failure it is their duty to die.