Does the multiplication of the reward for prayer in the Two Holy Mosques include both obligatory and supererogatory prayers? And can the making up of missed prayers be counted as one hundred thousand prayers when performed in the Grand Mosque of Makkah?

Prayer is multiplied in the Sacred Mosque (Masjid al-Haram) and the Prophet's Mosque (Masjid an-Nabawi), whether obligatory or supererogatory. This multiplication is specific to the reward and recompense only, and does not suffice for performing a prayer or making up for a missed one. Whoever has missed prayers must repent to Allah and make up what they have missed, prioritizing making up the missed prayers over supererogatory ones. They should strive to ascertain the number of missed prayers, or make up what they predominantly believe to be the correct number.