Ammar · a Light

He carried two bricks while everyone else carried one

When the mosque at Madinah was being built, Ammar ibn Yasir carried two mud bricks at a time while the others carried one. The Prophet ﷺ brushed the dust off him and said that the transgressing party would be the ones to kill him. Ammar had watched both his parents die under torture in Makkah. He lived to be over ninety and was killed at Siffin in 657, fighting on Ali's side against the army of Muawiya, and the statement about his death was quoted by both camps immediately afterwards, because whichever side had killed him stood named in it. It is one of the few prophetic sayings that became a live political argument within a single generation.

Ammar ibn Yasir · Madinah, then Siffin 657

Source · Bukhari 447