إِنَّ لِلرَّحِمِ أَرْبَعَةَ سُبُلٍ فِي أَيِّ سَبِيلٍ سَلَكَ فِيهِ الْمَاءُ كَانَ مِنْهُ الْوَلَدُ وَاحِدٌ وَ اثْنَانِ وَ ثَلَاثَةٌ وَ أَرْبَعَةٌ وَ لَا يَكُونُ إِلَى سَبِيلٍ أَكْثَرُ مِنْ وَاحِدٍ.
‘The womb has four ways in whichever way the seed (water) finds the path thereof comes a child, one child, two children , three children or four children . In (through) one way only one child can come and no more/”