In The Name of Allaah, The Most Merciful, The Bestower of Mercy

Allaah (The Most High) said:

لِّلَّهِ مُلۡكُ ٱلسَّمَـٰوَٲتِ وَٱلۡأَرۡضِ‌ۚ يَخۡلُقُ مَا يَشَآءُ‌ۚ يَہَبُ لِمَن يَشَآءُ إِنَـٰثً۬ا وَيَهَبُ لِمَن يَشَآءُ ٱلذُّكُورَ (٤٩) أَوۡ يُزَوِّجُهُمۡ ذُكۡرَانً۬ا وَإِنَـٰثً۬ا‌ۖ وَيَجۡعَلُ مَن يَشَآءُ عَقِيمًا‌ۚ إِنَّهُ ۥ عَلِيمٌ۬ قَدِيرٌ۬

To Allah belongs the kingdom of the heavens and the earth. He creates what He wills. He bestows female (offspring) upon whom He wills, and bestows male (offspring) upon whom He wills. Or He bestows both males and females, and He renders barren whom He wills. Verily, He is the All-Knower and is Able to do all things. [42:49-50]