Reference: Fataawa Noor ‘alad-Darb – Question No.6203, Page 29, Volume 12
Question: I have a brother who does not pray, and I have advised him to pray and explained to him that whoever abandons the prayer is a disbeliever. However, he does not accept my advice, yet continues to eat, drink and live with us – so what is the ruling [regarding that] in this situation? Are we considered hypocrites towards him or not; [please] guide us, and may you be rewarded?
Response: I advise you all to advise him one more time, and if Allaah (‘Azza wa Jall) guides him and he begins to pray – then that is what is required, and this would be a blessing from Allaah upon him and upon you all. And if it is otherwise, and he refuses to pray, then [by doing so] he is a disbeliever and apostate, and you are required to boycott him and distance yourselves from him. You must also ask him to keep his distance from the home – if he does not own the house; and if he does own the house, then you must all leave, because the one who abandons the prayer is a disbeliever and apostate, and you must boycott him and distance yourselves from him and keep him away – at a distance.
And if someone was to say ‘we fear that if we kept him at a distance – away from ourselves, then this will only cause him to increase upon evil’, then we respond ‘there is no greater harm [upon him] than disbelief, so he is a disbeliever – and we seek refuge in Allaah; what do you expect from him if he remained upon disbelief whilst [living with you all] in the house?’
If however, based upon clear signs and indications which suggest that he is leaning towards repentance, then here we say ‘so long as there is this hope in him – even if a little – that Allaah will guide him, then he can remain in the house, and the advice [to start praying] must be repeated to him’.