Iran's Supreme Leader Ayatollah Mojtaba Khamenei released a written statement on Sunday urging Gulf rulers to "identify their real enemy and understand the plans to confront it."
Khamenei's message, issued in commemoration of the birth anniversary of Prophet Muhammad, also called for "unity among Muslims" and mutual defense against their enemies.
Iran's leader hasn't been seen for months since he got caught up in the opening strikes of the last Israel-Iran war, where his father, a predecessor, Ayatollah Ali Khamenei, was killed.
According to Israeli and American assessments, Khamenei survived the attack, was severely wounded, but still continued to rule the country.
"The Muslims’ unity in the face of the world’s disbelief is a Quranic strategy and a basic teaching of the pure Islam of Prophet Muhammad, not a superficial or transient matter," Khamenei wrote in his statement.
Araghchi pushes for diplomacy
Last Tuesday, Iran Foreign Minister Abbas Araghchi published a message saying that "Iran’s commitment to peace and stability is matched by steadfast diplomacy with our neighbors."
The Iranian official has been meeting with several representatives from neighboring nations, mainly from Oman and Pakistan, in a new push for regional diplomacy.
"In talks with Pakistani and Omani guests, regional solutions were stressed. Proposed framework for new corridor, joint mine-clearing, and future management of Hormuz is case in point," Araghchi wrote.
Later on Friday, the Iranian FM said that he had met Qatar's Foreign Minister, adding that "putting diplomacy back on track isn't impossible."
"It hinges on US understanding of one simple fact: pressure doesn't work. The US should build trust, speak respectfully, acknowledge our rights, and uphold commitments," Araghchi claimed.