SB 4.2.3
etad akhyahi me brahman
jamatuh svasurasya ca
vidvesas tu yatah pranams
tatyaje dustyajan sati
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
My dear Maitreya, to part with one’s life is very difficult. Would you kindly explain to me how such a son-in-law and father-in-law could quarrel so bitterly that the great goddess Sati could give up her life?