Her mother is illiterate and doubts the resurrection
Question

                My mother is an illiterate woman, she does not read or write. She prays but she does not know what she says in prayer. She did not memorize but Surat Al-Fatiha. What shall I do sheikh?  I tried to teach her the pillars of salaah and what to say while praying, but she cannot learn as she is very old. 

Secondly: she cannot pronounce words correctly. She does not believe in resurrection after death, not due to kufr, but due to her old age. She says: “if I die will I live again?” please sheikh answer my question and make du’a for her and me
Praise be to Allah.
    Firstly: 

    If a person is illiterate and cannot read or write, then he 
    must be taught what to say in prayer and how to pray. The fact that he 
    cannot read or write does not mean that he cannot do that, because it is 
    something that is easy, praise be to Allaah. Most of the Sahaabah (may 
    Allaah be pleased with them) could not read or write, but they learned well 
    how to pray. 

    Reciting al-Faatihah in prayer is one of the pillars or 
    essential parts of the prayer, whereas reciting a soorah after it is Sunnah 
    and mustahabb, so if your mother does not do it, there is no sin on her. But 
    you should help her to memorize some short soorahs such as al-Ikhlaas and 
    al-Mi’wathatayn (i.e., the last three soorahs of the Qur'aan). 

    With regard to sujood (prostration), what one must say in it 
    is Subhaana Rabbiy al-A’la (Glory be to my Lord Most High) once, but it is 
    mustahabb to say it at least three times. This phrase is undoubtedly easy, 
    but if a person cannot say it that is due to his own shortcomings and 
    negligence. 

    Whatever the case, you should be kind to her and help her to 
    carry on praying, and teach her whatever she needs to know of the dhikrs 
    that are said in prayer. If she is unable to learn them, but she can recite 
    al-Faatihah well as you say, then she can say whatever du’aa’s and tasbeehs 
    she can, and whatever she is unable to do will be waived and she will be 
    pardoned for that.

    Abu Dawood (792) narrated that the Prophet  (peace and 
    blessings of Allaah be upon him) said to a man: “What do you say in your 
    prayer?” He said: I recite tashahhud and say: O Allaah, I ask You for 
    Paradise and I seek refuge with You from Hell. But I cannot murmur as well 
    as you and Mu’aadh do. The Prophet  (peace and blessings of Allaah be 
    upon him) said: “That is what we are murmuring about.” Classed as saheeh by 
    al-Albaani in Saheeh Abi Dawood. 

    Shaykh al-Islam said: The one who follows this principle, 
    which is that the obligatory parts of prayer are waived for the one who is 
    unable to do them, as are the obligatory parts of prayer in congregation and 
    so on, has come to the right conclusion that is indicated by the Sunnah of 
    the moderate way between the idea of neglecting some obligations of 
    sharee’ah altogether and the idea of regarding them as not subject to being 
    waived at all to the point that it makes a person ignore other obligations 
    which are more important that that which he waived because he is unable to 
    do it, even though he is able to fulfil these obligations that are more 
    important. Therefore, to do what one is able to do and not do what one is 
    unable to do is the middle way between two extremes. 

    End quote from Majmoo’ al-Fataawa (23/247). 

    Secondly: 

    Denying the resurrection after death or doubting that it will 
    happen is kufr which puts one beyond the pale of Islam according to 
    scholarly consensus, because of the sound and clear evidence in the Qur'aan 
    and Sunnah which speaks of the resurrection. Rather common sense and sound 
    human nature also point to that.  

    Allaah says (interpretation of the meaning): 

    “The disbelievers pretend that they will never be 
    resurrected (for the Account). Say (O Muhammad 
    صلى الله عليه وسلم): Yes! By my Lord, you will certainly be 
    resurrected, then you will be informed of (and recompensed for) what you 
    did; and that is easy for Allaah”

    [al-Taghaabun 64:7] 

    “And indeed We created man (Adam) out of an extract of 
    clay (water and earth).

    13. Thereafter We made him (the offspring of Adam) as a 
    Nutfah (mixed drops of the male and female sexual discharge and lodged it) 
    in a safe lodging (womb of the woman).

    14. Then We made the Nutfah into a clot (a piece of thick 
    coagulated blood), then We made the clot into a little lump of flesh, then 
    We made out of that little lump of flesh bones, then We clothed the bones 
    with flesh, and then We brought it forth as another creation. So Blessed is 
    Allaah, the Best of creators.

    15. After that, surely, you will die.

    16. Then (again), surely, you will be resurrected on the 
    Day of Resurrection”

    [al-Mu’minoon 23:12-16]

    “And the Trumpet will be blown (i.e. the second blowing) 
    and behold from the graves they will come out quickly to their Lord.

    52. They will say: ‘Woe to us! Who has raised us up from 
    our place of sleep.’ (It will be said to them): ‘This is what the Most 
    Gracious (Allaah) had promised, and the Messengers spoke truth’”

    [Yaa-Seen 36:51-52] 

    “And he puts forth for Us a parable, and forgets his own 
    creation. He says: ‘Who will give life to these bones after they are rotten 
    and have become dust?’

    79. Say: (O Muhammad صلى الله 
    عليه وسلم) ‘He will give life to them Who created them for the first 
    time! And He is the All‑Knower of every creation!’”

    [Yaa-Seen 36:78-79]

    And there are many other verses which speak of the 
    resurrection and requital, followed by Paradise or Hell. And there are 
    mutawaatir ahaadeeth which tell of how people will rise from their graves 
    and be assembled in the place of gathering, and they will stand, barefoot, 
    naked and uncircumcised, and the sun will be brought close to their heads, 
    and there will be the reckoning and requital, and admittance to Paradise or 
    Hell. 

    These are things which no Muslim has any excuse for not 
    knowing; rather even non-Muslims such as Jews and Christians know them, so 
    the one who denies them is undoubtedly a kaafir. 

    What you must do is explain to her how Allaah will honour 
    those who obey Him, and will make the reckoning easy for them and admit them 
    to His Paradise and the abode of His honour, and tell her about the 
    punishment and humiliation that He has prepared for those who disobey Him 
    and go against Him, and their miserable state at the time of death, in the 
    grave and on the Day of Resurrection. 

    Tell her of Allaah’s perfect justice, wisdom and mercy, and 
    that it is not befitting for Him to leave mankind with no resurrection or 
    reckoning: 

    “ ‘Did you think that We had created you in play (without 
    any purpose), and that you would not be brought back to Us?’

    116. So Exalted be Allaah, the True King: Laa ilaaha illa 
    Huwa (none has the right to be worshipped but He), the Lord of the Supreme 
    Throne!

    117. And whoever invokes (or worships), besides Allaah, 
    any other ilaah (god), of whom he has no proof; then his reckoning is only 
    with his Lord. Surely, Al‑Kaafiroon (the disbelievers in Allaah and in the 
    Oneness of Allaah, polytheists, pagans, idolaters) will not be successful.

    118. And say (O Muhammad صلى 
    الله عليه وسلم): ‘My Lord! Forgive and have mercy, for You are the 
    Best of those who show mercy!’”

    [al-Mu’minoon 23:115-118]

    And it is not befitting for Him ultimately to treat believers 
    and disbelievers, righteous and evildoers, equally. 

    “Shall We treat those who believe (in the Oneness of 
    Allaah __ 
    Islamic Monotheism) and do righteous good deeds asMufsidoon (those who associate partners in worship 
    with Allaah and commit crimes) on earth? Or shall We treat the Muttaqoon 
    (the pious) as the Fujjaar (criminals, disbelievers, the wicked)?”

    [Saad 38:28] 

    “Or do those who earn evil deeds think that We shall hold 
    them equal with those who believe (in the Oneness of Allaah __ 
    Islamic Monotheism) and do righteous good deeds, in their present life and 
    after their death? Worst is the judgement that they make”

    [al-Jaathiyah 45:21]

    Tell her that these ideas are a slander against Allaah and 
    disbelief in Him. Al-Bukhaari (3193) narrated that Abu Hurayrah (may Allaah 
    be pleased with him) said: The Prophet  (peace and blessings of Allaah 
    be upon him) said: “The son of Adam reviles Me and he has no right to revile 
    Me, and he denies Me and he has no right to do so. As for his reviling Me, 
    it is his saying that I have a son. And as for his denying Me, it is his 
    saying: He will not remake me as He made me at first.” 

    Seek help in teaching and guiding her from those whom you 
    trust among her children and relatives. 

    We ask Allaah to guide her and set her affairs straight. 

    And Allaah knows best.