"My wife is breast-feeding and I do not want her to get pregnant." The Prophet said: "What has been decreed in the womb will come to be."
أَنَّ رَجُلاً سَأَلَ رَسُولَ اللَّهِ ﷺ عَنِ الْعَزْلِ فَقَالَ إِنَّ امْرَأَتِي تُرْضِعُ وَأَنَا أَكْرَهُ أَنْ تَحْمِلَ فَقَالَ النَّبِيُّ ﷺ إِنَّ مَا قَدْ قُدِّرَ فِي الرَّحِمِ سَيَكُونُ