Narrated to us Abu Bakr ibn Abi Shaybah, narrated to us Muhammad ibn Bishr al-ʿAbdi, narrated to us Saʿid ibn Abi ʿArubah, from Qatadah, from Mutarrif ibn ʿAbdullah ibn al-Shikhkhir, that ʿA'ishah informed him that the Messenger of Allah (peace and blessings be upon him) used to say in his bowing and prostration: "Subbuhun Quddusun, Rabbul-mala'ikati war-ruh" (Glory and Holiness be to Him, Lord of the angels and the Spirit).