The Congregation - Friday - 62:9
O you who believe, when you are called to prayer on Friday, hasten to remember Allah and leave the shopping. That is better for you, if you know.
Properly performed prayer keeps one away from evil deeds:
The Spider/29:45
Read from the Book which We have revealed to you and observe the prayer. For prayer discourages from abominable and evil things. The remembrance of Allah (through prayer) is most important. Allah knows what you do.