She insulted the Quran during a quarrel with her husband
17-3-2010 | IslamWeb
Question:
Salaam Please can you help me, i am so upset and ashamed of myself, alhamdulilah i love allah and love my religion allah has helped me through so many difficulties. I am ashamed to say this when i was having an arguement with my husband he asked me something and i was quite angry and said 'i swear on the effing quran that i didnt do this' astagfirullah it was a slip of the tongue and i really did not mean it, i keep asking allah for forgiveness and i keep getting scared as my mind is telling me im a kafir but my heart is telling i am not, i pray my salaat and do loads dhikr. I love allah and am trying so hard to keep waswas away from me. i feel so sad i just want allah to forgive me, also has this broken my nikkah? thank you for ur help may allah bless you
Answer:
All perfect praise be to Allaah, The Lord of the Worlds. I testify that there is none worthy of worship except Allaah, and that Muhammad 
is His slave and Messenger.
It is good that a Muslim loves Allaah and loves his/her religion; this necessitates that he/she should glorify Him, His Religion and His Book. Allaah Says (what means): {That [is so]. And whoever honors the Symbols of Allaah - indeed, it is from the piety of hearts.}[Quran 22:32]
A Muslim in the situation that you mentioned in the question should not reach the position of despising the Words of Allaah even with a small word, let alone describing it with the heinous words that you mentioned in the question. The scholars 
stated that there is an agreement among the jurists that whoever despises the Quran or the Mus-haf (the Arabic text of the Quran) or despises any part of it, or that he/she denies one letter of it, or denies any ruling or information that Quran spoke about, then he/she becomes a disbeliever. Furthermore, even if a person despises the Torah or curses it, he/she becomes a disbeliever, as mentioned by Ibn Taymiyyah 
. This is the same thing with all the heavenly revealed books, like the Enjeel (Gospel) and other Books.
Therefore, it becomes clear that you have committed a grave major sin that takes a person out of the fold of Islam, so you are obliged to sincerely repent to Allaah and be keen on controlling your tongue. Indeed, a Muslim may be thrown into Hellfire because of a slip of the tongue. Abu Hurayrah 
narrated that he heard the Prophet saying: “Indeed, a slave (of Allaah) may utter a word without thinking whether it is right or wrong, he may slip down in the Hellfire as far away a distance equal to that between the east.”
You should know that whoever sincerely repents, Allaah accepts his repentance even if the sin is disbelief, so you should not despair. For more benefit on the conditions of repentance, please refer to Fatwa 87903.
Finally, we draw your attention to respect your husband and consider him as your protector and provider and that he has a great right on you. The Prophet said: "If it is befitting for a human being to prostrate to another human being, I would have ordered the wife to prostrate to her husband because of the great right that he has on her." [Abu Daawood]
Allaah Knows best.