SB 6.18.60
ekada sa tu sandhyayam
ucchista vrata-karsita
asprsta-vary-adhautanghrih
susvapa vidhi-mohita
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
Having grown weak and thin because of strictly following the principles of the vow, Diti once unfortunately neglected to wash her mouth, hands and feet after eating and went to sleep during the evening twilight.