Can fidyah be paid in one lump sum or must it be paid every day?

Can fidyah be paid in one lump sum or must it be paid every day?

Fidyah can be paid in one go for all the days missed or paid daily according to the number of days of fasting missed.
Reference: Al-Ramli, Nihayat al-Muhtaj, Vol. 3, p. 194.