Translation of the verse 48 from Surah Ash-Shura : Number of verses 53 - - page 488 - Part 25.
But if they turn away (O Muhammad SAW from the Islamic Monotheism, which you have brought to them). We have not sent you (O Muhammad SAW) as a Hafiz (protector) over them (i.e. to take care of their deeds and to recompense them). Your duty is to convey (the Message). And verily, when We cause man to taste of Mercy from Us, he rejoices thereat, but when some ill befalls them because of the deeds which their hands have sent forth, then verily, man (becomes) ingrate!
But if they turn away - then We have not sent you, [O Muhammad], over them as a guardian; upon you is only [the duty of] notification. And indeed, when We let man taste mercy from us, he rejoices in it; but if evil afflicts him for what his hands have put forth, then indeed, man is ungrateful.
(42:48) (O Prophet), if they turn away from the Truth, know that We did not send you to them as their overseer. *74 Your task is only to convey (the Message). Indeed when We give man a taste of Our Mercy, he exults in it. But if any misfortune afflicts them on account of their deeds, man is utterly ungrateful. *75
*74) That is, "You have not been made responsible that you must bring them to the right path anyhow, nor will you be held accountable as to why these people did not come to the right path."
*75) "Man" here implies the mean and shallow people who are the subject of the discourse here, who have got a measure of the worldly provisions and are exulting in this, and who do not pay any attention when they are admonished to come to the right path. But when they are visited by a disaster in consequence of their own misdeeds, they stmt cursing their fate, and forget alI those blessings which AIlah has blessed them with, and do not try to understand how far they themselves are to be blamed for the condition in which they are placed. Thus, neither does prosperity become conducive to their reformation nor can adversity teach them a lesson and bring them to the right path. A study of the context shows that this is, in fact, a satire on the attitude of the people who were the addressees of the above discourse, but they have not been addressed to tell them of their weakness directly, but the weakness of man has been mentioned in a general way and pointed out that what is the real cause of his sad plight. This gives an important point of the wisdom of preaching: the weaknesses of the addressee should not be made the target directly, but they should be mentioned in a general way so that he is not provoked, and if his conscience has still some life in it, he may try to understand his shortcoming with a cool mind.