Repent sincerely by verbalizing 'astaghfirullah,' which means, “I seek forgiveness from Allah.” Resolve to never commit the sin again. Repair: If the sin involved wronging someone, make reparations by seeking their forgiveness and recompensing them if possible.
It is important for the repentant to follow these steps. A person must be truly remorseful, resolve not to repeat the sin again, rectify the wrongdoing as much as possible, even if injustice was committed against others, and then to implore the words of forgiveness. Then, a true penitence is achieved.
saying: “By Allah, I seek Allah's forgiveness and repent to Him more than seventy times a day.” Say, “O My servants who have transgressed against themselves [by sinning], do not despair of the mercy of Allah. Indeed, Allah forgives all sins. Indeed, it is He who is the Forgiving, the Merciful.”
Through sincere repentance Allah forgives sins no matter how big they are and no matter how many they are. Allah says: “Say: O My slaves who have transgressed against themselves (because of sins), do not despair from the mercy of Allah. Verily, Allah forgives all sins.
Coming back to the above question, regarding the signs that Allah SWT has accepted a person's repentance is when his attitude and character change, his soul became closer and his love for the mosque increases, his manners and language improve, he feels happy when worshipping and he continues to seek for forgiveness ...
This association with shirk is noteworthy for shirk is considered unforgivable if not repented of. God forgiveth not (the sin of) joining other gods to Him; but He forgiveth whom He pleaseth other sins that this: one who joins other gods with God hath strayed far, far away.
At-Tawbah (Arabic: ٱلتوبة, lit. 'the Repentance') is the ninth chapter (sura) of the Quran. It contains 129 verses (ayat) and is one of the last Medinan surahs.
Tawbah is the act of repentance to Allah from any kind of sins or wrongdoings. A Muslim has to repent for anything that is forbidden in Islam. such as lying or backbiting. In the Quran and Hadith, the word Tawbah (to return) means returning from evil and unholy activities and firmly avoiding them in the future.
Abu Huraira reported Allah's Apostle as saying: “Allah has decreed for every son of Adam his share of zina, which he will inevitably commit. The zina of the eyes is looking, the zina of the tongue is speaking, one may wish and desire, and the private parts confirm that or deny it.”
Allah Loves those who repent
“And He it is Who accepts repentance from His slaves, and forgives sins, and He knows what you do” [al-Shooraa 42:25] “Truly, Allaah loves those who turn unto Him in repentance and loves those who purify themselves” [al-Baqarah 2:222]
The first step for the sinner is sincere repentance. Sincere repentance includes having remorse over your actions, as well as a resolute determination not to fall back into the sin.
Will they not turn to Allah in repentance and seek His forgiveness? And Allah is All-Forgiving, Most Merciful. Why do they not turn towards God in repentance and ask for His forgiveness? God is most forgiving and Merciful-to-all.
You may have felt like your sins are too serious or that you have made the same mistake too many times. But no matter how much we have sinned, we can always repent and be forgiven. Some sins may be easier to correct than others, but Jesus Christ has provided for total forgiveness from all sins. He is eager to forgive.
Ch 112 Surah Al-Ikhlas or Al-Tawhid
When a person recites this Surah 100 times, all his sins for the past 25 years are forgiven (except the sins of killing an innocent person or usurping the property of people). The one who recites it 1000 times will not die unless he sees his place in Jannah.
Surah Ale Imran, verse 193
Our Lord, so forgives us our sins and remove from us our misdeeds and cause us to die with the righteous.
I believe that God can forgive all sins provided the sinner is truly contrite and has repented for his or her offenses. Here's my list of unforgivable sins: ÇMurder, torture and abuse of any human being, but particularly the murder, torture and abuse of children and animals.
He said, “Associating others with Allah (shirk); witchcraft; killing a soul whom Allah has forbidden us to kill, except in cases dictated by Islamic law; devouring orphans' wealth; consuming Riba; fleeing from the battlefield; and slandering chaste and innocent women.”
Greater shirk
To associate anyone with Allah as his partner (to believe in more than one god)