Study of the Causes of Saudi Arabia's attempt to securitization Iran's peaceful nuclear activities

Joint Comprehensive Plan of Action concluded on July 7,2015 in Vienna, between Iran and the 5 + 1 countries. during the negotiations, each country had approaches to the Iranian nuclear issue, and try to apply their views in the negotiations. In the meantime, the two countries were Strongly opposed the formation of the agreement, and did not hesitate to destroy it even after the agreement was reached. The two countries are Zionist regime and Saudi Arabia. The reasons for the Zionist regime's opposition to the Islamic Republic of Iran are quite clear.. But the key question is why has Saudi Arabia opposed the Iran's nuclear deal and peaceful activity, even more so than the Zionist regime? It seams, although the Islamic Republic of Iran does not consider Saudi Arabia as an enemy in its security strategies and does not seek to securitiz its relationship with that country, but the Saudi elites now considers the Islamic Republic of Iran as its main enemy. And take any action on its part as hostile and react to it. Nuclear peaceful activity is one of the actions of the Islamic Republic of Iran that the Saudi elite consider as an existential threat against them and have opposed it and attempted to securitiz it.