Answered by Mufti Muhammad ibn Adam al-Kawthari
Question:
I just wanted to know the ruling on repairing and servicing cars. Many people just take their cars to the mechanic and ask for it to be repaired without fixing a price. Is this allowed in Islam? What if the customer does not mind if the cost is not fixed from before?
Answer:
In the name of Allah, Most Compassionate, Most Merciful,
Sayyiduna Abu Hurayra (Allah be pleased with him) relates that “the Messenger of Allah (Allah bless him & give him peace) prohibited the pebble sale and the sale consisting gharar.” (Sahih Muslim, no: 1513, Musnad Ahmad, Sunan Abi Dawud, Sunan Tirmidhi and others)
The Place of Politics in Religion