Abbas - Tanwîr al-Miqbâs min Tafsîr Ibn ‘Abbâs
(Lo! We have sent thee) O Muhammad (with the Truth) with the Qur'an and the declaration of the Oneness of Allah, (a bringer of glad tidings) that Paradise shall be for the believers (and a warner) against hell for those who disbelieve in Allah. (And thou wilt not be asked about the owners of hellfire) it is not befitting that you should ask about the dwellers of hell; and it is said that this means: do not ask for the forgiveness of the dwellers of hell.
We have sent you, Muhammad (s), with the truth, the guidance, a bearer of good tidings, of Paradise, for those who respond to this [guidance], and warner, of the Fire, to those who do not respond to it. You shall not be asked about the inhabitants of Hell-fire, that is, about why the disbelievers did not believe, for your responsibility is only to deliver the Message (a variant reading of lā tus’al is lā tas’al, ‘do not ask’, with the final apocopation of the vowel on account of it being an imperative).
We have sent you with the truth, a bearer of good tidings, and warner. You shall not be asked about the inhabitants of Hell-fire, that is to say, you will not be accountable for their being veiled and it is not your concern to save them from the darknesses of their veils, but your duty is to summon them [to religion] through good tidings and warnings.
(We know best what they say. And you (O Muhammad ) are not the one to force them (to belief). But warn by the Qur'an; him who fears My threat) (50:45).
There are many other similar Ayat.
The Description of the Prophet in the Tawrah
Imam Ahmad recorded `Ata' bin Yasar saying that he met `Abdullah bin `Amr bin Al-`As and said to him, "Tell me about the description of the Messenger of Allah in the Torah.'' He said, "Yes, by Allah, he is described by the Torah with the same characteristics that he is described with in the Qur'an with: `O Prophet! We have sent you as a witness, a bringer of good news, a warner, and as safe refuge for the unlettered people. You are My servant and Messenger. I have called you the Mutawakkil (who depends and relies on Allah for each and everything). You are not harsh, nor hard, nor obnoxious in the bazaars. He does not reward the evil deed with an evil deed. Rather, he forgives and pardons. Allah will not bring his life to an end, until he straightens the wicked's religion by his hands so that the people proclaim: There is no deity worthy of worship except Allah. By his hands, Allah will open blind eyes, deaf ears and sealed hearts.''' This was recorded by Al-Bukhari only.
Maududi - Sayyid Abul Ala Maududi - Tafhim al-Qur'an
They demanded hat either Allah Himself should come before them and say, "This is My Book and these are My Instructions for you to follow." Or, He should show such a Sign to them as would conclusively demonstrate that Muhammad (Allah's peace be upon him) was really a Messenger of Allah and that what he presented was revealed to him by Allah.
That is, "The objections and demands of those who are opposing the Truth today are not new. These are exactly the same as have always been put forward by those who go astray from the Right Way, as all the wicked people of all ages think alike and follow the same line of argument."
The demand that Allah Himself should speak to them was so absurd that it needed no reply. As to the other demand that Allah should show them a Sign, Allah answers that He has shown many clear Signs but those who are not inclined to believe cannot see them.
Not to speak of the other Signs, the most conspicuous Sign was the personality of Muhammad himself (Allah's peace be upon him). They knew everything about his life before Prophethood; the conditions of his country and nation and the circumstances and environment under which he was brought up and how he spent the first forty years of his life before his appointment as a Prophet;
We have sent you with the truth a bearer of good tidings and warner. You shall not be asked about the inhabitants of hellfire. “We have singled you out [O Muḥammad] with qualities which We did not make appear in anyone else so all people are under your banner. Those who are accepted are in conformity with you while those who are rejected oppose you al-maqbūl man wāfaqaka wa-l-mardūd man khālafaka. You will not be questioned about the states of others and you will not be turned away because of anyone.”
(… And thou wilt not be asked about the owners of hell-fire) [2:119]. Said Ibn ‘Abbas: “One day, the Messenger of Allah, Allah bless him and give him peace, said: ‘Would that I knew what became of my parents!’ And this verse was revealed as an answer”. This however applies only in the case when the verb in the above verse is read in the apocopate form. And Muqatil said: “The Prophet, Allah bless him and give him peace, said: ‘The Jews would have believed if Allah had sent His harm upon them’. Allah, exalted is He, revealed in response (And thou wilt not be asked about the owners of hell-fire)”.