كتاب الطهارة
1  
The Book of Purification
(8)
Chapter: Taking Ghusl (bath) And the precepts regarding Sexual Impurity
(8)
باب الغسل وحكم الجنب
Bulugh al-Maram 125
Ahmad transmitted a similar narration to the above, on the authority of `A'ishah (RAA), but this version has an unknown transmitter.
وَلِأَحْمَدَ عَنْ عَائِشَةَ نَحْوُهُ, وَفِيهِ رَاوٍ مَجْهُول ٌ 1‏ .‏


‏1 ‏- ضعيف.‏ رواه أحمد (654)‏.‏

Reference : Bulugh al-Maram 125
In-book reference : Book 1, Hadith 153
English translation : Book 1, Hadith 134