prostration

AA,I read in ?Mashqwat Shrif  ? Sahi Bukhari?  that prayer is f orbidden for the some periods of times during a day like when the sun is rising or setting down and also after performing Asr prayer till the sun sets down. My question is:  Let say I am reciting Quran Shrif after performing Asr prayer and came across the ?Ayateh- Sajda?. So am I allowed to do the ?Sajda? at this time or should I wait till the sun sets down. My second question: Listening to Quran Shrif while driving a car and I came across the ?Ayateh-Sajda?. So for this situation what time should I do the ?Sajda? I heard from some one that the ?physical Sajda? is not necessary because one can say the ?Pray (D?ua) of Sajda? verbally instead, can you please tell me if it is true or not? And if it is okay then which Fiqh is practicing this as I am following Hanafi Fiqh. Is this possible if I could get the citation of answer?Thank you very much Scholars for taking your time to answer my question.Jazakum-allah-khairAbdul Shah

Dear scholars, As-Salamu `alaykum. It says in Surat Al-Hajj: 18 that the dawab (moving living creatures) prostrate to Allah. What is the nature of this prostration? Jazakum Allah khayran.

As-Salamu `alaykum. I am doing martial arts as sport. I have my grade in tae-kwan-do and now I am doing another martial art called hapkido. I would like to do this because the Muslim must be strong all the time. However, when one starts the game, one performs an action like prostration or sujud. What do you think of this? Do I have to stop the game because of this?