Do good deeds in this world for mercy & grace from Allah in hereafter .

This hadith speaks about the insignificance of man on the day of resurrection. It is narrated by A'mash that when we are resurrected, our presence will be so insignificant that it would be like a white hair on a black ox or like a black hair on a white ox. This means that we will not have any power or authority and our presence would not make any difference in front of Allah's might and power. We should always remember this fact and strive to do good deeds in this world so that we can receive Allah's mercy and grace in the hereafter.