Question Summary:
Is it permissible to hire out a vehicle to a company who will utilize it for transporting wine?

Question Detail:

I work as a manager in a motor spares shop which also deals in mechanical services. One of our clients hires his cars to a brewing company who supply beers, wines and all sorts of brewing products all over the country. We do the service and repairing of all their vehicles that are working in our province and the client (the hirer) makes us the payment for the mechanical services. 1. Are we permitted to repair those vehicles? 2. Should I continue working for such a business? 

Answer :

In the Name of Allah, the Most Gracious, the Most Merciful.
As-salāmu ‘alaykum wa-rahmatullāhi wa-barakātuh.
It is permissible to service the vehicles. You will not be responsible for the sinful acts conducted by the clients.[1]
And Allah Ta’āla Knows Best
Abdul Hannan Nizami,
Student Darul Iftaa
Chicago, USA
Checked and Approved by,
Mufti Ebrahim Desai.