Indeed, those who reject the message after their belief and then increase (3:90)

﴿إِنَّ الَّذِينَ كَفَرُوا بَعْدَ إِيمَانِهِمْ ثُمَّ ازْدَادُوا كُفْرًا لَّن تُقْبَلَ تَوْبَتُهُمْ وَأُولَٰئِكَ هُمُ الضَّالُّونَ﴾
[ آل عمران: 90]

3:90 Indeed, those who reject the message after their belief and then increase in disbelief - never will their [claimed] repentance be accepted, and they are the ones astray.

Those who disbelieve after having faith, and stick to this disbelief until they die, then repenting to Allah and asking for forgiveness at the time of death, will not have this accepted from them, as the time for acceptance would have expired.
They are those who have lost their way from the straight path which leads to Allah.

Verily, those who disbelieved after their Belief and then went on increasing in their disbelief (i.e. disbelief in the Quran and in Prophet Muhammad SAW) - never will their repentance be accepted [because they repent only by their tongues and not from their hearts]. And they are those who are astray.

phonetic Transliteration

Inna allatheena kafaroo baAAda eemanihim thumma izdadoo kufran lan tuqbala tawbatuhum waolaika humu alddalloona

Abdullah Yusuf Ali - Translation

But those who reject Faith after they accepted it, and then go on adding to their defiance of Faith,- never will their repentance be accepted; for they are those who have (of set purpose) gone astray.

Safi-ur-Rahman al-Mubarakpuri

Verily, those who disbelieved after their belief and then went on increasing in their disbelief never will their repentance be accepted. And they are those who are astray.

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