I have question, if a person whose income is not halal, performs nikah and pays mahr form that income. In this case his nikah would be valid or not.
بسم الله الرحمن الرحيم
(Fatwa: 1352/916/L=10/1435)
Nikah shall be valid. However, he should pay the mahr from halal income.
Allah knows Best!
Darul Ifta,
Darul Uloom Deoband