"We said: 'O Messenger of Allah! We practice Azl, but the Jews claim that it is minor infanticide.' So he said: 'The Jews lie. When Allah wants to create it, nothing can prevent Him.'"  

قُلْنَا يَا رَسُولَ اللَّهِ إِنَّا كُنَّا نَعْزِلُ فَزَعَمَتِ الْيَهُودُ أَنَّهَا الْمَوْءُودَةُ الصُّغْرَى فَقَالَ كَذَبَتِ الْيَهُودُ إِنَّ اللَّهَ إِذَا أَرَادَ أَنْ يَخْلُقَهُ لَمْ يَمْنَعْهُ قَالَ وَفِي الْبَابِ عَنْ عُمَرَ وَالْبَرَاءِ وَأَبِي هُرَيْرَةَ وَأَبِي سَعِيدٍ  

"We practiced Azl while the Qur'an was being revealed."