Ali remembered in prayer as an icon who pushed for unity (The Associated Press)

As the faithful chanted a Muslim prayer in unison, dignitaries and fans stood shoulder to shoulder to honor a man who used his celebrity to push for peace among races, religions and cultures. On phones and screens around the globe, thousands more joined the service from afar through streams and broadcasts, watching a traditional Muslim funeral ceremony play out for one of their heroes. The prayer service Thursday, known as Jenazah, began two days of memorials that Muhammad Ali crafted himself in exacting detail years before his death Friday.