When the drop of (semen) remains in the womb for forty or forty five nights, the angel comes and says: My Lord, will he be good or evil? And both these things would be written. Then the angel says: My Lord, would he be male or female? And both these things are written. And his deeds and actions, his death, his livelihood; these are also recorded. Then his document of destiny is rolled and there is no addition to nor subtraction from it.  

النَّبِيَّ ﷺ قَالَ يَدْخُلُ الْمَلَكُ عَلَى النُّطْفَةِ بَعْدَ مَا تَسْتَقِرُّ فِي الرَّحِمِ بِأَرْبَعِينَ أَوْ خَمْسَةٍ وَأَرْبَعِينَ لَيْلَةً فَيَقُولُ يَا رَبِّ أَشَقِيٌّ أَوْ سَعِيدٌ فَيُكْتَبَانِ فَيَقُولُ أَىْ رَبِّ أَذَكَرٌ أَوْ أُنْثَى فَيُكْتَبَانِ وَيُكْتَبُ عَمَلُهُ وَأَثَرُهُ وَأَجَلُهُ وَرِزْقُهُ ثُمَّ تُطْوَى الصُّحُفُ فَلاَ يُزَادُ فِيهَا وَلاَ يُنْقَصُ  

[Machine] I heard the Messenger of Allah ﷺ or the Messenger of Allah ﷺ say that the angel enters the womb after it settles in the uterus for forty nights, or Sufyan said once or forty-five nights, and the angel says, "O Lord, is it a male or a female? Is it blessed or miserable?" Allah, the Almighty and Exalted, says, "Write down." So they write down its deeds, its lifespan, its fate, and its provision. Then the scroll is folded, and nothing is added or subtracted from what is in it.  

سَمِعْتُ رَسُولَ اللهِ ﷺ أَوْ قَالَ رَسُولُ اللهِ ﷺ يَدْخُلُ الْمَلَكُ عَلَى النُّطْفَةِ بَعْدَمَا تَسْتَقِرُّ فِي الرَّحِمِ بِأَرْبَعِينَ لَيْلَةً وَقَالَ سُفْيَانُ مَرَّةً أَوْ خَمْسٍ وَأَرْبَعِينَ لَيْلَةً فَيَقُولُ يَا رَبِّ مَاذَا أَشَقِيٌّ أَمْ سَعِيدٌ؟ أَذَكَرٌ أَمْ أُنْثَى؟ فَيَقُولُ اللهُ تَبَارَكَ وَتَعَالَى فَيَكْتُبَانِ فَيَقُولَانِ مَاذَا؟ أَذَكَرٌ أَمْ أُنْثَى؟ فَيَقُولُاللهُ ﷻ فَيَكْتُبَانِ فَيُكْتَبُ عَمَلُهُ وَأَثَرُهُ وَمُصِيبَتُهُ وَرِزْقُهُ ثُمَّ تُطْوَى الصَّحِيفَةُ فَلَا يُزَادُ عَلَى مَا فِيهَا وَلَا يُنْقَصُ  

When the drop of (semen) remains in the womb for forty or forty five nights, the angel comes and says: My Lord, will he be good or evil? And both these things would be written. Then the angel says: My Lord, would he be male or female? And both these things are written. And his deeds and actions, his death, his livelihood; these are also recorded. Then his document of destiny is rolled and there is no addition to nor subtraction from it. (Using translation from Muslim 2644)   

عَنِ النَّبِيِّ ﷺ قَالَ يَدْخُلُ الْمَلَكُ عَلَى النُّطْفَةِ بَعْدَمَا تَسْتَقِرُّ فِي الرَّحِمِ أَرْبَعِينَ أَوْ خَمْسًا وَأَرْبَعِينَ لَيْلَةً فَيَقُولُ أَيْ رَبِّ أَشَقِيٌّ أَمْ سَعِيدٌ؟ فَيَقُولُ اللهُ ﷻ وَيَكْتُبانِ أَذَكَرٌ أَمْ أُنْثَى؟ فَيَقُولُ اللهُ وَيَكْتُبَانِ مُصِيبَتَهُ وَأَثَرَهُ وَرِزْقَهُ وَأَجَلَهُ ثُمَّ تُطْوَى الصَّحِيفَةُ فَلَا يُزَادُ فِيهَا أَوْ يُنْقَصُ مِنْهَا  

"يَدْخُلُ الْمَلَكُ عَلَى النُّطْفَةِ بَعْدَ مَا تَسْتَقِر فِى الرَّحِم بِأَرْبَعِينَ لَيْلَةً فَيَقُولُ: يَا رَبِّ: مَاذَا؟ أَشَقِىٌّ أَمْ سَعِيدٌ؟ يَقُولُ اللَّه، وَيَكْتُبَان، أَذَكَرٌ أَمْ أُنْثَى؟ فَيَقُولُ اللَّه، وَيَكْتُبَانِ، وَيُكْتَبُ عَمَلُهُ وَأَثَرُهُ وَمَعْصِيَتُه وَرِزْقُهُ وَأَجَلُهُ، ثُمَّ تُطْوَى الصَّحِيفَةُ فَلَا يُزَادُ عَلَى مَا فِيهَا وَلَا يُنْقَصُ".