Well, Quran 2:73 says that if you strike a dead human with a piece of beef (heifer) then that human will be resurrected. If I saw a dead man come back to life after being hit with a piece of beef then I'd consider that evidence for Allah. Naturally, nobody will be willing to die for the purposes of testing this verse. Come on people, where is your faith in Allah?
Quran 2:72-73 "Remember ye slew a man and fell into a dispute among yourselves as to the crime: But Allah was to bring forth what ye did hide. (72) So We said: "Strike the (body) with a piece of the (heifer)." Thus Allah bringeth the dead to life and showeth you His Signs: Perchance ye may understand. (73)
Quran 2:72-73 "Remember ye slew a man and fell into a dispute among yourselves as to the crime: But Allah was to bring forth what ye did hide. (72) So We said: "Strike the (body) with a piece of the (heifer)." Thus Allah bringeth the dead to life and showeth you His Signs: Perchance ye may understand. (73)