Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
tabarani:10440bZakariyyā b. Yaḥyá al-Sājī > Abū al-Rabīʿ al-Zahrānī > Sallām al-Ṭawīl > Zayd al-ʿAmmī > Ḥammād b. Abū Sulaymān > Abū Wāʾil > ʿAbdullāh b. Masʿūd

[Machine] From the Prophet ﷺ , he said, "Verily, the sperm remains in the womb for forty days, then it becomes a clot, then it becomes a lump of flesh. Then Allah sends an angel with four words, and he writes down his provision, his lifespan, whether he will be miserable or happy."  

الطبراني:١٠٤٤٠bحَدَّثَنَا زَكَرِيَّا بْنُ يَحْيَى السَّاجِيُّ ثنا أَبُو الرَّبِيعِ الزَّهْرَانِيُّ ثنا سَلَّامٌ الطَّوِيلُ عَنْ زَيْدٍ الْعَمِّيِّ عَنْ حَمَّادِ بْنِ أَبِي سُلَيْمَانَ عَنْ أَبِي وَائِلٍ عَنْ عَبْدِ اللهِ بْنِ مَسْعُودٍ

عَنِ النَّبِيِّ ﷺ قَالَ «إِنَّ النُّطْفَةَ لَتَكُونُ فِي الرَّحِمِ أَرْبَعِينَ يَوْمًا ثُمَّ تَكُونُ مِثْلَ ذَلِكَ عَلَقَةً ثُمَّ تَكُونُ مِثْلَ ذَلِكَ مُضْغَةً ثُمَّ يَبْعَثُ اللهُ الْمَلَكَ بِأَرْبَعِ كَلِمَاتٍ فَيَكْتُبُ رِزْقَهُ وَأَجَلَهُ وَشَقِيٌّ أَوَ سَعِيدٌ»