Imam Bukhari narrates: Ali bin Abdullah narrated to us, he said: Sufyan narrated to us, he said: Al-Zuhri narrated to us from Ata bin Yazid from Hazrat Abu Ayyub al-Ansari, Allah be pleased with him, that the Prophet ﷺ said:

When you go for relieving yourself, neither face the qiblah nor turn your back to the qiblah, but face the East or the West. Hazrat Abu Ayyub said: So we went to Sham, there we saw that the toilets were built facing the qiblah, so we would turn away from the qiblah and sit, and seek forgiveness from Allāh the Exalted.

And from Al-Zuhri from Ata, he said: I heard the like of this hadith from Abu Ayyub from the Prophet ﷺ.