IT is the duty of every muslim to perform the five daily prayers.expiation for missed prayers is not accepted.they can be made up for later.
valid prayer required that it should be performed at the proper time,in a state of consciousness and purify and in decent dress.
Q20 VS14, verily i am ALLAH there is no god but i: so serve thou me only and establish regular prayer for celebrating my praise.
It narrated that "the first act to judge the servant on the day of judgement is salat,if it is done perfectly it shall be accepted including the rest of his deeds,but if it is not done perfectly, it shall be shawned with the rest of his work".
salat is not perfect unless we follow the manners of prophet muhammed {s.a.w}
He said, "perform your prayers in the same manners you had seen me doing."

may ALLAH (s.w.a) make salah easy for all muslim and accept it from us.

Jazakumullahu khaeran. Good one.

wa iyyakum

as-salah is the first act of ibaadah that was made compulsory on every muslim