sat sri akal khalsa ji,
i recently had a discussion with some friends at university about the origins of sikhism. a few of them (sikhs and hindus) felt that sikhism originated from hinduism as sri guru nanak dev ji was born into a hindu family, some suggested it was a compromise between the two religions of the time islam and hinduism,
i insisted that gurbani is the word of god and not an interpretation of the two religions i further pointed out that guru nanak stated that he is neither hindu nor muslim. this act was verified at death whereupon his body had escaped the plans of both hindus and muslims to incorporate him into their religion with their choice of funeral service. i also mentioned guru ji renouncing ritualism of islam(fasting etc) and the caste system, idol worshiping of hindus.
however my friends claimed that gurbani refered to the quran at various points and refered to hindu gods also.
i am as fresh as a daisy in sikhism and only know the basics i would be grateful if the more learned could enlighten me to this subject so i will be better equipped to disprove such claim. any extracts from gurbani would be particularly helpful which reject claims made by both faiths
thanking you in advance (to avoid the annoying follow on posts of gratitude)
waheguru ji ka khalsa waheguru ji ki fateh