This is stated by two high-ranking Iranian security sources for the news agency Reuters.
Esmail Qaani has not been heard from since the attack, which according to Israeli media was directed against the probable new Hezbollah leader Hashem Safieddine on Friday.
Qaani had traveled to Beirut since the previous Hezbollah leader Hassan Nasrallah was killed in Israel's massive bombing raids against Hezbollah strongholds in Lebanon's capital Beirut at the end of September.
A high-ranking general in the powerful Revolutionary Guard, Abbas Nilforoushan, was killed in one of Israel's attacks on the same day as Nasrallah died.
Neither has Safieddine been reachable since Friday.
Esmail Qaani is said to have been in Beirut's southern suburbs, which Israel has targeted, but he did not meet Safieddine on Friday, according to one of Reuters' sources.
