Wa `alaykum as-Salamu wa Rahmatullahi wa Barakatuh.

In the Name of Allah, Most Gracious, Most Merciful.

All praise and thanks are due to Allah, and peace and blessings be upon His Messenger.

If you are traveling you should pray Qasr Salah; otherwise, you ought to pray in full.

As for the definition of travel that would qualify for Qasr, the majority view that it is a distance of eighty kilometers or more. Ibn Abbas is reported to have said, “If a person travels from Ta’if to Makkah or Jeddah to Makka he is considered a Musafir and hence he may pray Qasr.”

We also find some other reports from Ibn Umar and others offering Qasr Salah for traveling even shorter distances.

After reviewing these reports, Ibn Taymiyya has concluded: I am paraphrasing him: “it all depends what is considered a journey in a given culture or place. So, it could vary from one culture to another.”

In other words, in the olden days where means of transportation were camels and mules, a shorter journey could be considered  Safar ( a valid journey); however, nowadays a person commuting by car every day in a car or fast train is not considered a traveler by any stretch of the imagination.

So, I would urge you don’t rush to make qasr unless you are making a journey of more than 80 kilometers to be on the safe side.

Allah Almighty knows best.