Sunan Abi Dawud, Hadith 4425 ⓘ
Jabir said: A man committed fornication with a woman. It was not known that he was married. So he was flogged. It was then known that he was married, so he was stoned to death.
حَدَّثَنَا مُحَمَّدُ بْنُ عَبْدِ الرَّحِيمِ أَبُو يَحْيَى الْبَزَّازُ، أَخْبَرَنَا أَبُو عَاصِمٍ، عَنِ ابْنِ جُرَيْجٍ، عَنْ أَبِي الزُّبَيْرِ، عَنْ جَابِرٍ، أَنَّ رَجُلاً، زَنَى بِامْرَأَةٍ فَلَمْ يَعْلَمْ بِإِحْصَانِهِ فَجُلِدَ ثُمَّ عَلِمَ بِإِحْصَانِهِ فَرُجِمَ .
also referenced under: Hadith 4439 (DarusSalam)