The angel who blows the spirit into the fetus

From the hadith of Abdullah ibn Masud in the Forty of al-Nawawi with Ibn Rajab's commentary: each of you is gathered in his mother's womb forty days as a drop, then becomes a clot like that, then a chewed lump like that; then Allah sends the angel who blows the spirit into him and commands four things: that his provision, his term, his deed, and whether he is wretched or blessed be written ¹ Forty 4.

In this hadith the angel is the one who blows the spirit into the fetus by Allah's command, and the decree — provision, deed, term, and blessedness or wretchedness — is written at the moment of the blowing ¹.

From the qadar hadiths in Ibn Rajab's commentary on the Forty; the Jinn & Devils Browser shows it in the angels section ¹.