Sunan Abi Dawud 214
سنن أبي داود#214Sahihحَدَّثَنَا أَحْمَدُ بْنُ صَالِحٍ، حَدَّثَنَا ابْنُ وَهْبٍ، أَخْبَرَنِي عَمْرٌو، - يَعْنِي ابْنَ الْحَارِثِ - عَنِ ابْنِ شِهَابٍ، حَدَّثَنِي بَعْضُ، مَنْ أَرْضَى أَنَّ سَهْلَ بْنَ سَعْدٍ السَّاعِدِيَّ، أَخْبَرَهُ أَنَّ أُبَىَّ بْنَ كَعْبٍ أَخْبَرَهُ أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم إِنَّمَا جَعَلَ ذَلِكَ رُخْصَةً لِلنَّاسِ فِي أَوَّلِ الإِسْلاَمِ لِقِلَّةِ الثِّيَابِ ثُمَّ أَمَرَ بِالْغُسْلِ وَنَهَى عَنْ ذَلِكَ . قَالَ أَبُو دَاوُدَ يَعْنِي " الْمَاءَ مِنَ الْمَاءِ " .
Ubayy b. Ka’b reported :The Messenger of Allah (May peace be upon him) made a concession in the early days of Islam on account of the paucity of clothes that one should not take a bath if one has sexual intercourse (and has no seminal emission). But later on her commanded to take a bath in such a case and prohibited its omission
Scholarly Authentication
The label above is the grade most of these scholars gave — one dissenting opinion no longer speaks for all of them. If any scholar calls a narration fabricated, that verdict is shown instead, whatever the others say. Each scholar's own wording:
In-book reference: 1:214