Hawzah News Agency – If a person fears that their prayer is going to be qaḍā’ soon so they skip the second surah in the first and second rak‘at to shorten their prayer. Later they find that they had enough time to recite the second surah. Do they have to repeat the prayer?
Answer: No, it is not necessary
Source: https://www.leader.ir/en/book/32/Practical-Laws-of-Islam