I work in an IT firm and my duty period is usually 8-5. My office is about 50km's away from my home. I get my lunch break at 1.00 PM so I can pray Zuhr without any problems. But since I usually work till 5 and I need to run to catch the train home (otherwise I miss Maghrib too) straight from work, I miss Asar. My mother told me to pray Asar along with Zuhr (8 rakah's without giving salam at the end of Zuhr salah). Is it possible for me to do that?
I know the best solution is to go to mosque after work and pray Asar. But if I do that, I'll have to wait till 6.30 PM and pray Maghrib and then return home (which means it'll be past 9.00 PM when I get home.) I just want to know if I can do what my mom said.
I am particularly interested in an answer according to Shi'ite jurisprudence.