If oil is applied to the hair and a person does not use shampoo to remove the oil but only pours water over the head. Will the ghusl be valid?
بسم الله الرحمن الرحيم
(Fatwa: 1072/956/H=9/1438)
Though the oil etc is not cleaned by the shampoo but the water reaches to the root of the hair then the wajib ghusl shall be valid.
Allah knows Best!
Darul Ifta,
Darul Uloom Deoband