As time progressed, his writings began to exhibit his claims of being the mujaddid or reformer of his era. These writings were compiled in one of his most well-known works: Barahin Ahmadiyya, a work consisting of 5 volumes while originally planned 50 volumes. He explained that since there is only a dot difference between 50 & 5, therefore his promise was fulfilled. In later volumes, he would essentially claim to be the messiah of Islam. This proved and continues to be very controversial, as traditional Islamic thought holds that Jesus is the Messiah, who himself will return in the flesh at the end of times. Ghulam countered this by claiming that Jesus was dead, and had in fact escaped crucifixion and died in India. According to Ghulam, the promised Mahdi was a spiritual, not military leader as is believed by most Muslims. With this proclamation, he also began to step away from the traditional idea of militant Jihad, and redefined it as a “spiritual” battle rather than a physical one. In addition to these controversial claims, he would later claim that Guru Nanak, the first Sikh Guru, was in fact a Muslim.