Surah 'Abasa 80:19
مِن نُّطْفَةٍ خَلَقَهُۥ فَقَدَّرَهُۥ
From a sperm-drop He created him and destined for him;
Translation: Saheeh International
Tafsir
From a drop of sperm did He create him then proportion him in stages as a blood-clot then an embryo up to the last stage of his creation.
Excerpt from Tafsir al-Jalalayn, commentary on 80:19, via Quran.com. The reader has the full commentary and 9 more tafsirs.