Sayyidah Umaymah bint Ruqayqah (may Allah be pleased with her) narrates that the Prophet (peace and blessings be upon him) had a wooden vessel which was kept under his (peace and blessings be upon him) bed, and he (peace and blessings be upon him) would urinate in it at night. This hadith has a sahih (authentic) chain and is a rare sunnah. Umaymah bint Ruqayqah is a well-known female Companion whose hadith is found in the books of the Imams, but the two Shaykhs did not record it.