Rumi is one of the great spokesmen for the Quranic instruction teaching that all prophets come from God and God does not create one religion, but many religions.
Jalaluddin Rumi is completely rooted in Islamic teachings of Quran. He was a great scholar, he belonged to a madrassa, and he knew Islamic theology and jurisprudence very well. He knew Persian, Arabic and Turkish, which was coming into Anatolia at that time, very well. He was a remarkable, remarkable scholar, besides being a great saint.