13:8
ٱللَّهُ يَعْلَمُ مَا تَحْمِلُ كُلُّ أُنثَىٰ وَمَا تَغِيضُ ٱلْأَرْحَامُ وَمَا تَزْدَادُ ۖ وَكُلُّ شَىْءٍ عِندَهُۥ بِمِقْدَارٍ
Allah knows what every female carries and what the wombs lose [prematurely] or exceed. And everything with Him is by due measure.
Translation · Saheeh International
Tafsir
Ibn Kathīr (abridged)
Allah is All-Knower of Al-Ghayb (Unseen)
Allah affirms His perfect knowledge, from which nothing is hidden, and that He has complete knowledge of whatever every female creature is carrying,
وَيَعْلَمُ مَا فِى الاٌّرْحَامِ
(And He knows that which is in the wombs.)31:34, whether male or female, fair or ugly, miserable or happy, whether it will have a long or a short life. Allah said in other Ayat,
هُوَ أَعْلَمُ بِكُمْ إِذْ أَنشَأَكُمْ مِّنَ الاٌّرْضِ وَإِذْ أَنتُمْ أَجِنَّةٌ
(He knows you well when He created you from the earth, and when you were fetuses.)53:32, and,