Who Are The Greatest Losers?

They are those who deny the Signs of their Lord and the fact of their having to meet Him (in the Hereafter): vain will be their works, nor shall We, on the Day of Judgment, give them any weight.That is their reward, Hell, because they rejected Faith, and took My Signs and My Messengers by way of jest. 

(Quran 18 vs 105-106)

Commentary (ibn Kathir)

The Greatest Losers in respect of (Their) Deeds

(And We shall turn to whatever deeds they did,
and We shall make such deeds as scattered floating particles of dust.) ﴿25:23﴾

(As for those who disbelieved, their deeds are like a mirage in a desert. The thirsty one thinks it to be water,until he comes up to it, he finds it to be nothing) ﴿24:39﴾ And in this Ayah Allah says:

(Say: "Shall We tell you...'') meaning, `Shall We inform you;'

(the greatest losers in respect of (their) deeds) Then Allah explains who they are, and says:

(Those whose efforts have been wasted in this life) meaning, they did deeds that do not count, deeds that are not in accordance with the prescribed way that is acceptable to Allah.

(while they thought that they were acquiring good by their deeds.) means, they thought that there was some basis for their deeds and that they were accepted and loved.

(They are those who deny the Ayat of their Lord and the meeting with Him.) they denied the signs of Allah in this world, the proofs that He has established of His Oneness and of the truth of His Messengers, and they denied the Hereafter.

(and on the Day of Resurrection, We shall assign no weight for them.) means, `We will not make their Balance heavy because it is empty of any goodness.' Al-Bukhari recorded that Abu Hurayrah said that the Messenger of Allah said:

(A huge fat man will come forward on the Day of Resurrection and he will weigh no more than the wing of a gnat to Allah. Recite, if you wish:) (and on the Day of Resurrection, We shall assign no weight for them) It was also recorded by Muslim.

(That shall be their recompense, Hell; because they disbelieved) means, `We will punish them with that because of their disbelief and because they took the signs and Messengers of Allah as a joke, mocking them and disbelieving them in the worst way.'

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