﴿ وَيُمْدِدْكُم بِأَمْوَٰلٍۢ وَبَنِينَ وَيَجْعَل لَّكُمْ جَنَّٰتٍۢ وَيَجْعَل لَّكُمْ أَنْهَٰرًۭا ﴾

“and will aid you with worldly goods and children, and will bestow upon you gardens, and bestow upon you running waters.”

(And will help you with wealth) camels, bovines, sheep (and sons) and daughters; this is because Allah had stopped their wives and beasts from conceiving for 40 years, (and will assign unto you Gardens and will assign unto you rivers) flowing rivers for your own benefits. This is because Allah had, before this, destroyed their fields and made their rivers dry for 40 years.