Book 1, Number 0011:

Narrated Abdullah ibn Umar:

Marwan al-Asfar said: I saw Ibn Umar make his camel kneel down facing the qiblah, then he sat down urinating in its direction. So I said: AbuAbdurRahman, has this not been forbidden? He replied: Why not, that was forbidden only in open country; but when there is something between you and the qiblah that conceals you , then there is no harm.
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Book 1, Number 0010:

Narrated Ma'qil ibn AbuMa'qil al-Asadi:

The Apostle of Allah (peace_be_upon_him) has forbidden us to face the two qiblahs at the time of urination or excretion.
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Book 1, Number 0007:

Narrated Salman al-Farsi:

It was said to Salman: Your Prophet teaches you everything, even about excrement. He replied: Yes. He has forbidden us to face the qiblah at the time of easing or urinating, and cleansing with right hand, and cleansing with less than three stones, or cleansing with dung or bone.
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Book 1, Number 0006:

Narrated Zayd ibn Arqam:

The Apostle of Allah (peace_be_upon_him) said: These privies are frequented by the jinns and devils. So when anyone amongst you goes there, he should say: "I seek refuge in Allah from male and female devils."
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Book 1, Number 0003:

Narrated AbuMusa:

AbutTayyah reported on the authority of a shaykh (an old man): When Abdullah ibn Abbas came to Basrah, people narrated to him traditions from AbuMusa. Therefore Ibn Abbas wrote to him asking him about certain things. In reply AbuMusa wrote to him saying: One day I was in the company of the Apostle of Allah (peace_be_upon_him). He wanted to urinate. Then he came to a soft ground at the foot of a wall and urinated. He (the Prophet) then said: If any of you wants to urinate, he should look for a place (like this) for his urination.
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Book 1, Number 0002:

Narrated Jabir ibn Abdullah:

When the Prophet (peace_be_upon_him) felt the need of relieving himself, he went far off where no one could see him.
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Book 1, Number 0001:

Narrated Mughirah ibn Shu'bah:

When the Prophet (peace_be_upon_him) went (outside) to relieve himself, he went to a far-off place.
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