Volume 1, Book 5, Number 288:
Narrated ‘Abdullah bin ‘Umar:
Umar bin Al-Khattab told Allah’s Apostle, “I became Junub at night.” Allah’s Apostle replied, “Per –
form ablution after washing your private parts and then sleep.”
Volume 1 – 79 / 1700
SAHIH BUKHARI VOLUME 1 > BOOK 5: BATHING (GHUSL)