Is it not a lesson for the successors of the past generations that had We wanted, We could have punished them for their sins, sealed their hearts and deprived them of hearing? 100 These are the dwellings – the affairs of which We relate to you (Prophet Mohammed – peace and blessings be upon him); and indeed their (respective) Noble Messengers came to them with clear proofs; so they were not able to believe in what they had denied before; this is how Allah sets seals upon the hearts of disbelievers. 101 And We found no covenant in most of them; and most of them We found ungodly. 102 Then after them We sent Musa (Moses) with Our Signs to Fir'aun (Pharaoh) and his chiefs, but they wrongfully rejected them. So see how was the end of the Mufsidun (mischief-makers, corrupts, etc.). 103 Moses said, "Pharaoh, I am a messenger from the Lord of the Universe, 104 "I am duty bound to speak nothing of God but the truth I have brought from your Lord a clear sign; so let the people of Israel depart with me." 105 He said: "If you have brought a sign then display it, if what you say is true." 106 Then (Moses) threw his rod, and behold! it was a serpent, plain (for all to see)! 107 And he drew forth his hand (from his bosom), and lo! it was white for the beholders. 108