How and when should four consecutive missed prayers be made up?

Whoever misses a prayer or more must make it up immediately, for the Prophet, peace and blessings be upon him, said: "Whoever forgets a prayer, let him pray it when he remembers it." He should pray the missed prayers in order, as the Prophet, peace and blessings be upon him, did on the Day of the Confederates (Al-Ahzab). Scholars have differed on the ruling of ordering missed prayers among themselves and with the present prayer. The more cautious approach is to order the four missed prayers, even if it is with a present prayer. It should be noted that delaying prayer beyond its prescribed time without a valid excuse is not permissible.