Earlier quoted context omitted.
> Mossad attempted to use poison to assassinate the head of Hezbollah. It went comically wrong, with his driver chasing down the assassins with a rolled-up newspaper. Mossad successfully poisoned the head of Hezbollah by spraying a delayed action toxin into his ear. His driver (who did not comprehend what had happened, and whom he was dealing with) chased after the assassins who in turn fled fearing he was a bodyguar…
I believe you've conflated two assassination attempts, one on Hassan Nasrallah, one on Khaled Mashal. Mashal was the one in 1997 where the antidote was turned over by the Israeli government. Nasrallah was in 2008, and also survived after being treated by Iranian doctors.
You are right. My mistake.