We used to practise 'azl while the Qur'an was revealed (during the days when the Prophet was alive).
كُنَّا نَعْزِلُ وَالْقُرْآنُ يَنْزِلُ زَادَ إِسْحَاقُ قَالَ سُفْيَانُ لَوْ كَانَ شَيْئًا يُنْهَى عَنْهُ لَنَهَانَا عَنْهُ الْقُرْآنُ
We used to practise 'azl while the Qur'an was revealed (during the days when the Prophet was alive).
كُنَّا نَعْزِلُ وَالْقُرْآنُ يَنْزِلُ زَادَ إِسْحَاقُ قَالَ سُفْيَانُ لَوْ كَانَ شَيْئًا يُنْهَى عَنْهُ لَنَهَانَا عَنْهُ الْقُرْآنُ