The Cow - 2:238 Pay attention to the prayers, especially the middle prayer. Stand in prayer, giving yourselves wholly to Allah.
Why pay particular attention to the middle prayer?
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.
The Congregation - Friday/62:10 When the prayer is over, spread out in the earth and seek Allah´s favor and keep on remembering Allah.
The Congregation - Friday/62:11 "Some of them, when they see a trade or a pastime, leave you standing and flock to it. Say, "What is with Allah is better than amusement and trade. Allah is the best provider."

The Light/24:37 There are people. Neither business nor commerce prevents them from remembering Allah, observing the prayer and paying the zakat. They fear a Day when hearts and eyes will turn upside down.