Does Allaah accept a person’s repentance every time he sins and repents, even if he does that many times?

For how long does Allaah forgive a person's sin? If he repents and
seeks forgiveness from his sin, then goes and commits the same sin
again, then he seeks forgiveness again then commits the same sin
again, and so on – does Allaah forgive him or does that means that he
is not sincere towards Allaah, especially if he repeats that sin after
a short while, but he does not stop seeking forgiveness?.
Praise be to Allaah.
Allaah says (interpretationof the meaning):
"And those who, when they have committed Faahishah (illegal sexual
intercourse) or wronged themselves with evil, remember Allaah and ask
forgiveness for their sins; — and none can forgive sins but Allaah —
and do not persist in what (wrong) they have done, while they know.
136. For such, the reward is forgiveness from their Lord, and Gardens
with rivers flowing underneath(Paradise), wherein they shall abide
forever. How excellent is this reward for the doers (who do righteous
deeds accordingto Allaah's Orders)"
[Aal 'Imraan 3:135-136]
Ibn Katheer said:
The words "and do not persist in what (wrong) they have done" mean:
they repent from their sins and quickly turn to Allaah, and they do
not persist in their sin, rather they give it up, and if theydo that
again they repent to Him.
Tafseer Ibn Katheer, 1/408.
It was narrated that Abu Hurayrah said: I heard theProphet (peace and
blessings of Allaah be upon him) say: "A person committed a sin and
said: 'My Lord, I have sinned; forgive me.' His Lord said: 'Is My
slave acknowledging that he has a Lord Who forgives sins and punishes
for them? I have forgiven My slave.' Then as much time passed as
Allaah willed, then he committed a sin and said, 'My Lord, I have
sinned; forgive me.' His Lord said: 'Is My slave acknowledging that he
has a Lord Who forgives sins and punishes for them? I have forgiven
Myslave.' Then as much time passed as Allaah willed, then he committed
a sin and said, 'My Lord, I have sinned; forgive me.' His Lord said:
'Is My slave acknowledging that he has a Lord Who forgives sins and
punishes for them? I have forgiven My slave,' – three times…"
Narrated by al-Bukhaari, 7507; Muslim, 2758.
Al-Nawawi (may Allaah have mercy on him) included this hadeeth under
the heading: "Acceptance of repentancefrom sins even if the sins and
repentance happen repeatedly."
He said in his Sharh:
We have already discussed this issue at the beginning of the Book of
Repentance. These ahaadeeth clearly point tothat, and even if the sin
is repeated a hundred timesor a thousand times or more, and he repents
each time, his repentance will be accepted and his sin will be erased.
And if he repents once from them all, his repentance will be valid.
Sharh Muslim, 17.75.
Ibn Rajab al-Hanbali said:
'Umar ibn 'Abd al-'Azeez said: O people, whoever commits a sin, let
him seek the forgiveness of Allaah and repent, and if he repeats it,
let him seek the forgiveness of Allaah and repent, and if he repeats
it, let him seek the forgiveness of Allaah and repent, for it is like
chains around the neck of man, and doom lies in persisting in it.
What this means is that a person will inevitably commit the sins that
it is decreed he will commit, as the Prophet (peace andblessings of
Allaah be upon him) said: "The son of Adam's share of zina is decreed
for him, and he will inevitably come to that…" But Allaah has given
him a way out fromthe sins that he falls into and He erases them by
means of repentance and seeking forgiveness. If he does that then he
will escape from the evil of sin, but if he persists in hissin he will
be doomed.
Jaami' al-'Uloom al-Hakam, 1/165.
Although Allaah hates sin and warns of punishment for it, He does not
want His slaves to despair of Hismercy. He likes the sinner to seek
His forgiveness and repent to Him, but the Shaytaan likes it
whendespair fills a person's heart and prevents him from repenting and
turning to Allaah.
It was said to al-Hasan al-Basri: Would not any one of us feel ashamed
before his Lord to seek forgiveness from his sin then go back to it,
then seek forgiveness then go back to it? He said: The Shaytaan would
like you to feel that way; never give up seeking forgiveness/