One of the prayers that may not be shortened
The answer is: The prayers that he imposed are less than four rak’ahs (Fajr prayer and Maghrib prayer)
Fajr and Maghrib prayers are two prayers that are not permissible to be shortened in Islam. According to the Qur’an and Sunnah, these two prayers must be performed in full. Fajr prayer is the morning prayer that must be performed before sunrise. Maghrib prayer is the evening prayer that must be performed after sunset. Both of these prayers are obligatory and are among the five prayers that Muslims must perform. It is not permissible to shorten either of these prayers, as they must be performed in their entirety in order to fulfill religious obligations.
