Ibrahim (Abraham) was neither a Jew nor a Christian, but he was a true Muslim Hanifa (Islamic Monotheism - to worship none but Allah Alone) and he was not of Al-Mushrikun (See V. 2:105).
Ibrahim hakuwa Yahudi wala Mkristo, lakini alikuwa mwongofu Muislamu, wala hakuwa katika washirikina.