Is it permissible for an unpubescent girl, nine years of age, to combine the Maghrib and Isha prayers as jam' taqdeem (combining and praying the later prayer at the time of the earlier one) before sunset in the summer, so that she can sleep early due to the long daytime hours in Scandinavian countries?

Prayer is not obligatory for a child who has not reached puberty, based on the Prophet's (peace be upon him) saying: "The pen has been lifted from three: from the sleeper until he awakens, from the child until he reaches puberty, and from the insane until he regains his sanity."

The guardian should command the child to pray at the age of seven, and discipline him for not praying at the age of ten.

It is permissible to combine the Maghrib and Isha prayers by advancing the Isha prayer (Jam' Taqdim) for a child who has not reached puberty, due to extreme hardship, but only after the time for Maghrib prayer has begun. The guardian must explain to the child the reason for combining the prayers and that he is not yet fully accountable.