Is a person who believes that there was Tahrif in the Quran considered a disbeliever?

TahrifQur'an
Is a person who believes that there was Tahrif in the Quran considered a disbeliever?
Sayyed Mohammad Al-Musawi, Sayyed Mohammad al-Musawi is originally from Iraq and heads up the World Ahlul Bayt Islamic League in London. Other than being involved in various humanitarian projects, he frequently responds to... Answered 1 year ago

Tahrif in Quran is impossible and it is against our Shia faith. 
'If a person claims Tahrif, we need to ask him for authentic evidence of his claim then reply him with our authentic evidence from Ahlul Bayt (AS).

Wassalam.