There is no specific mention of Hinduism in the Quran. The Quran does not command Muslims to kill Hindus or any other religious group. Hinduism is an Indian religion and a way of life of the Hindu people primarily practiced in the Indian subcontinent and other regions which have experienced Hindu influence since ancient and medieval times. The sacred scriptures of Islam are the Quran and the Hadiths, which report what Muhammad said and did. Hinduism does not have a "unified system of belief". The Quran mentions the prophets sent to Jews and Christians and finally to Pagans of Arabia in particular and the whole mankind in general (Muhammad) but it doesnt mention anything about Hinduism.