Answer
Wa `alaykum As-Salamu waRahmatullahi wa Barakatuh.
In the Name of Allah, Most Gracious, Most Merciful.
All praise and thanks are due to Allah, and peace and blessings be upon His Messenger.
In this fatwa:
It is permissible for Muslim taxi drivers to pick up drunk passengers, provided they do not knowingly assist in transporting prohibited substances like alcohol.
Answering your question, Assoc. Prof. Dr. Muhammad Salama, HoD, Islamic Studies Department, IOU and a member of the Faculty of Islamic Sciences, MEDIU, states:
It is basically permissible to work as a taxi driver. But as in any other job or profession, a Muslim has to abide by the teachings of his religion. Picking a drunk person is not prohibited. If this person carries a bag and you do not know what it contains, then you do not have to inquire. But if you come to know that this person carries wine or the like intoxicants, then you have to refrain from picking him.
Get more information through the following resources:
Working as a Controller in a Taxi Company: Permissible?
Private Cars Operating as Taxis at Expense of Public Transport: Allowed?
Driving a Taxi Marked with Advertisements: Permissible?
Allah Almighty knows best.
Editor’s note: This fatwa is from Ask the Scholar’s archive and was originally published at an earlier date.