فَأَرَدْنَآ أَن يُبْدِلَهُمَا رَبُّهُمَا خَيْرًا مِّنْهُ زَكَوٰةً وَأَقْرَبَ رُحْمًا
Faradnaa any yubdila humaa Rabbuhumaa khairam minhu zakaatanw wa aqraba ruhmaa
we wished that their Lord should give them another child- purer and more compassionate- in his place.
So we wished that their Lord would give them in his place one purer and closer to mercy.