Say, "Who can protect you at night or by day from the Most Merciful?" But they are, from the remembrance of their Lord, turning away. 42 Or have they gods that can guard them from Us? They have no power to aid themselves, nor can they be defended from Us. 43 Nay, We gave the good things of this life to these men and their fathers until the period grew long for them; See they not that We gradually reduce the land (in their control) from its outlying borders? Is it then they who will win? 44 Say, "I warn you only through the Revelation." But the deaf can hear nothing when they are warned, 45 If a blast of the torment of your Lord strikes them, they will say, "Woe to us! We have been unjust people." 46 We shall maintain proper justice on the Day of Judgment. No soul will be wronged the least. For a deed even as small as a mustard seed one will duly be recompensed. We are efficient in maintaining the account. 47 We gave Moses and Aaron the Criterion, and gave them a light and a Remembrance for the cautious: 48 Those who fear their Lord in secret and who dread the Hour (of doom). 49 This is a blessed Remembrance which We have sent down. Do you disbelieve it? 50