Ustadh on Friday it's Sunnah to read As Sajdah And Al Insan but can an Imam read half of both surahs in fajr prayer or he should read full to get the the reward of the Sunnah?It's not allowed to read half ?

Ustadh AbdulAziz al-Haqqan

Recite them in full. Shaykh Ibn Uthaymin called splitting these two surahs playing with the sunnah.