The New Jersey man could not believe Rushdie survived after being stabbed approximately 10 times.
"Relieved [Rushdie] is pulling through after Friday's nightmare," tweeted Lakshmi, who was married to the author between 2004 and 2007.
Around 2,000 members of the Afghan Ulema Council were meeting in Kabul when a lone bomber struck.
The group's fatwa gives a set of rules on how to treat slaves in Iraq and Syria.
With four more health workers killed this week, trying to eradicate the virus is a dangerous job
The fatwa from Dar al-Ifta, condemned online contact between men and women, saying chatrooms are "frivolous, evil and open the door for the devil"