O my sons, go and find out about Joseph and his brother and despair not of relief from Allāh. Indeed, no one despairs of relief from Allāh except the disbelieving people."
Their father told them to go and find out news about Joseph and his brother, and not to despair of relief from Allah and His release of His servants. Without doubt, only disbelieving people despair of relief from Allah and His release of His servants, because they do not know the greatness of Allah’s power and His subtle favour upon His servants.