Qutaibah told us, Hammad bin Zaid told us, from Asim bin Bahdalah, of Mus'ab bin Sa'd, from his father, he said, I said, "O Messenger of Allah, who is the greatest human trials?" He replied, "The Prophet. Then the equal and equivalent to them. Someone was tested in accordance with the level of religious (faith). If religion (faith) is strong, then the ordeal even more severe. If religion (faith) thin, then he will be tested based on the level of religion (faith) that. disaster (disaster) it will not be separated from a slave, until he left the servant walked on this earth without any mistakes (sins) ".
[Hasan Saheeh Ibn Majah (4023).]
Has told us Musaddad have told us Yahya from Sufyan from his father from Abu Ya'la of Ar Rabi 'bin Khutsaim of Abdullah he said; Prophet Muhammad sallallaahu 'alaihi wasallam never make us a line or rectangular. Then he makes a line in the middle, then make some lines around it and make a line that is outside the center line. He also said: "This is a human being, ie the center line, this is a death that surrounds it. These are the things that will happen (in humans, such as bala`, tests, and trials while in the world) on these lines. If not exposed to one line, it will be bitten (exposed) other lines (bala 'and the trials that will always come and go without stopping.) And this is the hope, which is a line that is outside. "
[Ad-Darimi No.3268]