Imam Ahmed Ben Hanbal narrated in his “Musnad” and Al-bayhaqi in his book “Al- I’tiqaad”, and classed as Saheeh by Al-Aswad Ben Saree’ that the prophet (PBUH) said:
“Four types of people will be tested on the day of judgement: a deaf man who cannot hear anything, a mad man, an old aged man and a man who died during fatrah (a period of time when no messenger was sent to people). The deaf man will say: “Oh Allah, Islam came while I cannot hear anything!”. The mad man will say: “Oh Allah, Islam came while the boys throw animals’ excrement on me!”. The old aged man will say: “Oh Allah, Islam came while I can understand nothing”. And the man who died during a fatrah will say: “Oh Allah, I witnessed no messenger from You”. Then Allah takes a promise from them to obey Him. Then He will command them to enter hell, and who enters it will find it peace and cool, and who disobeys will be dragged to hell”

-Sunna Musnad Ahmad:Hadith No. 15866

 

(Remember) the Day when the Shin shall be laid bare (i.e. the Day of Resurrection) and they shall be called to prostrate themselves (to Allaah), but they (hypocrites) shall not be able to do so” [al-Qalam 68:42].