Arabic (Original)
حَدَّثَنَا وَكِيعٌ عَنْ إِسْرَائِيلَ عَنْ أَبِي إِسْحَاقَ عَنْ عَبْدِ الرَّحْمَنِ بْنِ الْأَسْوَدِ أَخْبَرَنَا الْأَسْوَدُ وَعَلْقَمَةُ أَوْ أَحَدُهُمَا عَنْ عَبْدِ اللَّهِ أَنَّ النَّبِيَّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ كَانَ يُكَبِّرُ فِي كُلِّ رَفْعٍ وَخَفْضٍ قَالَ وَفَعَلَهُ أَبُو بَكْرٍ وَعُمَرُ رَضِيَ اللَّهُ عَنْهُمَا.
English Translation
The Messenger of Allah (peace be upon him) said: 'The creation of one of you is gathered in his mother's womb for forty nights, then it becomes a clot for a similar period, then it becomes a morsel of flesh for a similar period. Then the angel is sent to it and he breathes the spirit into it, and four words are commanded: his provision, his lifespan, his deeds, and whether he is wretched or blessed.'