He moved to Jordan and contributed to the building of the cultural landscape in Jordan with selected Jordanian and Palestinian intellectuals, serving as director of cultural programmers on Jordanian radio from 1970 to 1973. During the same period, he founded the Jordanian Writers' Association with a few Jordanian intellectuals and writers. He was elected as a member (rapporteur) of the Preparatory Committee, along with such figures as Mahmoud Saifuddin of Iran, Isa Nawari, Mahmoud Samra, lawyer Adi Madanat, and publisher Osama Sha'aa. He had a close friendship with Jordanian novelist Tisr Spol, strengthened during their work together on Jordanian radio. Al-Nasir lived through the bloody events of Black September between Palestinian organizations and the Jordanian regime, but was not involved despite his cultural activity in support of Tahrir. Following Black September, he was harassed by security authorities, as were many Palestinian and Jordanian figures supporting the work and the Liberation Organization, and was forced to leave for Beirut on 14 March 1974.