Examples given in Quran

 وَالَّذِينَ كَفَرُوا أَعْمَالُهُمْ كَسَرَابٍ بِقِيعَةٍ يَحْسَبُهُ الظَّمْآنُ مَاء حَتَّى إِذَا جَاءهُ لَمْ يَجِدْهُ شَيْئًا وَوَجَدَ اللَّهَ عِندَهُ فَوَفَّاهُ حِسَابَهُ وَاللَّهُ سَرِيعُ الْحِسَابِ 24:39

(Fathe Muhammad Jalandari)
جن لوگوں نے کفر کيا ان کے اعمال کي مثال ايسي ہے جيسے ميدان ميں ريت کہ پياسا اسے پاني سمجھے يہاں تک کہ جب اس کے پاس آئے تو اسے کچھ بھي نہ پائے اور خدا ہي کو اپنے پاس ديکھے تو وہ اسے اس کا حساب پورا پورا چکا دے. اور خدا جلد حساب کرنے والا ہے 24:39

(Muhammad Assad)
 24:39 But as for those who are bent on denying the truth, their [good] deeds are like a mirage in the desert, which the thirsty supposes to be water – until, when he approaches it, he finds that it was nothing: instead, he finds [that] God [has always been present] with him, and [that] He will pay him his account in full - for God is swift in reckoning!24:39

(Yousaf Ali)
 24:39 But the Unbelievers,- their deeds are like a mirage in sandy deserts, which the man parched with thirst mistakes for water; until when he comes up to it, he finds it to be nothing: But he finds Allah (ever) with him, and Allah will pay him his account: and Allah is swift in taking account.24:39