Surah Al-Mu'minun 23:14

ثُمَّ خَلَقْنَا ٱلنُّطْفَةَ عَلَقَةً فَخَلَقْنَا ٱلْعَلَقَةَ مُضْغَةً فَخَلَقْنَا ٱلْمُضْغَةَ عِظَـٰمًا فَكَسَوْنَا ٱلْعِظَـٰمَ لَحْمًا ثُمَّ أَنشَأْنَـٰهُ خَلْقًا ءَاخَرَ ۚ فَتَبَارَكَ ٱللَّهُ أَحْسَنُ ٱلْخَـٰلِقِينَ

Then We made the sperm-drop into a clinging clot, and We made the clot into a lump [of flesh], and We made [from] the lump, bones, and We covered the bones with flesh; then We developed him into another creation. So blessed is Allāh, the best of creators.

Translation: Saheeh International

Tafsir

Then We transformed the drop of semen into a clot congealed blood. Then We transformed the clot into a little lump of flesh mudgha a piece of flesh about the size of what one would be able to chew mā yumdagh. Then We transformed the lump of flesh into bones. …

Excerpt from Tafsir al-Jalalayn, commentary on 23:14, via Quran.com. The reader has the full commentary and 9 more tafsirs.