What promise did pope urban 2 make to the Christians who participated in the crusades?

Pope Urban II promised Christians who participated in the Crusades that they would receive forgiveness for their sins and the assurance of eternal salvation. He encouraged them to take up arms to reclaim the Holy Land from Muslim control, framing the Crusade as a holy pilgrimage. Additionally, he assured them that their earthly possessions would be protected while they fought for this sacred cause.