Isḥāq ibn Manṣūr narrated to me: Zakarīyā ibn ʿAdī informed us: ʿUbayd Allāh — meaning ibn ʿAmr — informed us, from Zayd ibn Abī Unaysah, from ʿAdī ibn Thābit, from Abū Ḥāzim al-Ashjaʿī, from Abū Hurayrah, who said: The Messenger of Allah, peace and blessings be upon him, said: "Whoever purifies himself in his house, then walks to one of the houses of Allah to fulfill an obligation from the obligations of Allah, his two steps will be such that one of them erases a sin and the other raises a degree."