Hadith
حَدَّثَنَا هَارُونُ بْنُ إِسْحَاقَ الْهَمْدَانِيُّ، حَدَّثَنَا سُفْيَانُ، عَنْ عَمْرٍو، عَنْ عَطَاءٍ، عَنْ جَابِرٍ، قَالَ كُنَّا نَعْزِلُ عَلَى عَهْدِ رَسُولِ اللَّهِ ـ صلى الله عليه وسلم ـ وَالْقُرْآنُ يَنْزِلُ .
It was narrated that Jabir said:'We used to practice coitus interruptus during the time of the Messenger of Allah when the Qur'an was being revealed.”
Sahih · Al-Albani
Sunan Ibn Majah 1927 ·Book 9, Hadith 83·Also available on sunnah.com·