Question Summary:
Is it permissible to use the Wi-Fi in my building?

Question Detail:

My question is that: The place where I am staying is an apartment . We are getting
access to free internet in the form of Wi-Fi . Is it jaayaz for us to use it on the mobile phones since we have
not subscribed to that service? 

Answer :

In the Name of Allah, the Most Gracious, the Most Merciful.
As-salāmu ‘alaykum wa-rahmatullāhi wa-barakātuh.
If the Wi-Fi is meant for all the residents of the apartment, then it is permissible to use the Wi-Fi facility.
 
And Allah Ta’āla Knows Best
Arshad Ali
Student Darul Iftaa
Trinidad
Checked and Approved by,
Mufti Ebrahim Desai.
http://www.daruliftaa.net/