Salam, If I were to make a journey after Dhur, and come back the same day from my journey will my fast be void(qasr) or my fast will be the same? Thank you very much

Walaikumussalam
If you begin your journey after the dhuhr whether you return or stay there your fast is valid and in order.
May Allah accept it
Wassalam
Syed Abul Qasim Rizvi