Fasting on Friday: Legal Rulings and Scholarly Explanations

Friday holds a special status in Islam as the sayyidul ayyam (master of days). Even though we're encouraged to do more worship, singling out Friday for optional fasting is actually makruh (disliked), and some scholars even say it's haram (forbidden). This prohibition comes from a sahih hadith: "None of you should fast on Friday unless he also fasts on a day before or after it" (reported by Bukhari and Muslim). The wisdom behind this is to keep your physical condition in good shape for the main acts of worship, especially the Friday prayer. The sharia gives us this leeway so that worship isn't disrupted by feeling weak from fasting. Fasting on Friday is allowed if you combine it with fasting on the day before or after, if it coincides with another sunnah fast like Arafah or Ashura, or if it's part of your regular routine. As for obligatory fasts like making up missed Ramadan days, vows, or expiations, those are still fine to do. This is backed by a number of scholars and fatwa bodies like MUI. https://mozaik.inilah.com/ibadah/apakah-boleh-berpuasa-di-hari-jumat-ini-hukum-dalil-dan-penjelasna-ulama