Hadith 1418
Sayyiduna Abdullah bin Umar (may Allah be pleased with them both) narrates: Once I climbed onto the roof of the house of Sayyidah Hafsah (may Allah be pleased with her), and the Prophet Muhammad (peace and blessings be upon him) was present there. He was relieving himself in the toilet facing the Qiblah and with his back towards Shaam.
Hadith 1419
Ghouth bin Sulaiman narrates from his father: We visited Sayyiduna Abdullah bin Harith Zubaidi on a Friday. He called for a basin and said to his maid, "Make a curtain for me." She made a curtain for him. He urinated in that basin and then stated: I heard the Prophet Muhammad (peace be upon him) say this: He forbade that anyone should urinate facing the Qiblah.