Her father smokes surreptitiously during the day in Ramadan, and she does not know what to do
Question

                My father pretends in front of us that he is fasting, but I can smell the odour of cigarettes on him throughout the day in Ramadan. When I say to him: You are breaking the fast; I smelled cigarettes on you, he says to me: Don’t be silly. Please note that he eats sahoor with us and prays Fajr, and he goes to sleep and does not eat or drink anything after that, like one who is fasting. On one occasion I saw him on the balcony, smoking, but I was too shy to say anything to him. I don’t know how to help him, or what I should say to him so that he will become religiously committed and give up this vice.
Praise be to Allah.
      Firstly: 

    Smoking is something that is prohibited in 
    Ramadan and at other times. This has been explained in fatwa no.
    10922.  It is also one of the things that break the 
    fast, as has been explained in fatwa no. 37765. 

    If it is proven that your father has 
    broken the fast during the day in Ramadan, by smoking or otherwise, then he 
    has committed a grave sin, which is one of the major sins.

    Ibn Khuzaymah 
    (1986) and Ibn Hibbaan (7491) narrated that Abu Umaamah al-Baahili (may 
    Allah be pleased with him) said: I heard the Messenger of Allah (blessings 
    and peace of Allah be upon him) say: “Whilst I was sleeping, two men came to 
    me and took hold of my upper arm, and brought me to a rugged mountain. They 
    said: ‘Climb up.’ 

    I said: ‘I cannot do it.’ 
    

    They said: ‘We will make it easy for you.’
    

    So I climbed up until I was at the top of 
    the mountain. There I heard loud voices. I said: ‘What are these voices?’
    

    They said: ‘This is the screaming of the 
    people of Hell.’ 

    Then I was taken and I saw people 
    suspended by their ankles, with the corners of their mouths torn and pouring 
    with blood. I said: ‘Who are these?’ They said: ‘These are the people who 
    broke their fast before it was time to do so.’” 

    Saheeh Mawaarid ad-Dam’aan 
    (1509) 

    Al-Albaani (may Allah have mercy on him) 
    said, commenting on this report: I say: this is the punishment of those who 
    fasted then broke the fast deliberately before the time for breaking the 
    fast had come. So how about those who did not fast in the first place?! We 
    ask Allah to keep us safe and sound and grant us well-being in this world 
    and the hereafter. 

    Please see also fatwa no.
    38747 

    Secondly: 

    What you must do is be wise in dealing 
    with this difficult problem. If you think it most likely that your father 
    will benefit from you speaking directly to him, then speak to him about that 
    and explain to him that what he is doing is haraam. 

    Otherwise, try to convey that message to 
    him indirectly, such as playing a clip that he can hear about the ruling on 
    smoking during the day in Ramadan, and that it is one of the things that 
    break the fast, or place somewhere that he can read it a written fatwa that 
    explains that, and that speaks of venerating the month of Ramadan and the 
    seriousness of violating its sanctity. 

    If you think it most likely that negative 
    consequences will result from speaking to him, then do not hasten to open 
    the subject with him, until there is a suitable opportunity to do so. 

    Such prohibited matters are well known 
    among people, and no doubt your father is well aware of the prohibition on 
    smoking whilst fasting, otherwise he would not have done it secretly. So the 
    issue is not one of explaining to him something of which he is not aware, or 
    establishing proof against him, because the matter is clear without any need 
    for you to speak and advise him. So all that is left is for you to examine 
    the situation from all angles, which you know better than anyone else, 
    because you know your father and his character. So weigh up the interests 
    that will be served by speaking to him, and what negative consequences for 
    yourself or for the family may be expected as a result of that. If you fear 
    some obvious harm or negative consequences that outweigh the benefits, then 
    you do not have to tell him what to do or what not to do, or advise him or 
    exhort him at all. Your only duty to him is to pray that he be guided and 
    set straight, and to look for a suitable opportunity to advise or exhort 
    him, even in general terms, and indirectly. 

    At all costs avoid watching him or spying 
    on him, because that is not permissible, in addition to the fact that if he 
    feels that you are spying on him, that will lead to him being put off and 
    not accepting your advice. We have previously discussed ways of calling 
    Muslims to adhere to the fast in the month of Ramadan; please see fatwa no.
    50745. 

    And Allah knows best.