On a fixed-vow day, no intention was made before true dawn. An intention for another obligatory fast is then made before Nisf al-Nahar. Which fast counts in the taught case?

Four Types of Timed Worship: The Role of Time

• The later-named other obligatory fast
• Both obligations as two separate complete fasts
• The fixed-day vowed fast
• No fast, because pre-dawn intention is required in every case