Is it permissible to combine and shorten the Dhuhr and Asr prayers - two rak'ahs each - due to rain?

If you shorten the four-rak'ah prayer at school while you are in your city of residence, then this is a mistake, and you must make up the two prayers, because shortening is only permissible when traveling. However, if you shortened and combined prayers while traveling, your action is permissible. Combining two prayers in one's city of residence due to rain is permissible according to the majority of scholars, whether for the Dhuhr and Asr prayers or the Maghrib and Isha prayers. Scholars differed regarding its permissibility outside the mosque.