Wa Alikum el salam ,
You want to make WLAN Network, Betweem 2 Laptops Or more?
If just 2 , You can make something called AD-HOC
If More than 2 , Then You need a Wireless access point(ROUTER).
Its a small piece of device , which connect multiple wireless devices together to make wireless lan network.
And if you wana connect the WLAN to Internet , u need to get DSL WIRELESS Router
So let me know which 1 is in your mind , to give you more details about how to build it up. But they are so simple , and you can simply search by these Keywords , Ad-Hoc , WLAN , ROUTER on any search website , and will get all the information you might need , and i am also here for help , if u needed any further help.
Best Of luck