Q. Dear Rov Shlit’a. If my most dearest wife left a piece of my washed needed wet laundry to dry hanging indoors in the bathroom at the start of last Shabbos, could i have used it when it dried as expected during the night?

A. In principle any item which became muktza during the very beginning of Shabbos remains muktza for the entire Shabbos, even if the reason for which it became muktza originally no longer extant. Some contemporary Poskim therefore rule, that a garment that was soaking wet during Bein Hashmoshos (twilight) remains muktza for the remainder of Shabbos, even if it has completely dried by some point later on Shabbos.

However, HoRav Moishe Feinstein Zt’l permits if it was indeed expected to dry and was hanged indoors with that intention.(quoted by Tiltulei Shabbos (36) and other Poskim.

Rabbi A. Bartfeld as revised by, Horav Dovid Pam, Horav Aharon Miller, Horav Chanoch Ehrentreu and Horav Kalman Ochs Shlit’a