الكافي- ط الاسلامية, volume 3, page 38

17. Ahmad ibn Idris and Muhammad ibn Yahya have narrated from Muhammad ibn Ahmad from Ahmad ibn al-al-Hassan from ‘Amr ibn Sa‘id from Musaddiq ibn Sadaqah from ‘Ammar al-Sabatiy who has said the following: “I once asked abu ‘Abd Allah (a.s.), about a man who cuts some of his hairs with his teeth. Should he wipe it with water before Salah (prayer)? He (the Imam) said, ‘It is not harmful. This (wiping) applies only when it is with iron.’”

Translation: Muhammad Sarwar — attributed by Thaqalayn·The Arabic above is the original.

1. Muhammad ibn Yahya has narrated from Ahmad ibn Muhammad from Ibn Abi ‘Umayr from Jamil ibn Salih from al-Ahwal who has said the following: “Abu ‘Abd Allah (a.s.), has said, ‘If one steps on a spot which is unclean, then steps on a clean spot, it is not harmful after walking a distance of fifteen yards or so.’”

Translation: Muhammad Sarwar — attributed by Thaqalayn·The Arabic above is the original.

2. Ali ibn Ibrahim has narrated from his father, from Hammad, from Hariz from Muhammad ibn Muslim who has said the following: “Once I was in the company of abu Ja‘far (a.s.), and on passing (stepping on) some dried up human feces, certain pieces came in contact with his clothes. I informed him about it and he (the Imam) asked, ‘Was it not dried up?’ I said, ‘Yes, it was dried up.’ He (the Imam) said, ‘It (touching) then is not harmful. Certain parts of earth cleanse other parts.’”

Translation: Muhammad Sarwar — attributed by Thaqalayn·The Arabic above is the original.

3. Muhammad ibn ’Isma‘il has narrated from al-Fadl ibn Shadhan from Safwan from Ishaq ibn ‘Ammar from Muhammad al-Halabiy who has said the following: “Once we found lodging in a place. Between this place and the Masjid there were dirty passageways. I visited abu ‘Abd Allah (a.s.). He (the Imam) asked, ‘Where have you found lodging?’ I replied, ‘It is the house of so and so.’ He (the Imam) or we said, ‘Between that house and Masjid there are unclean passageways.’ He (the Imam) said, ‘It is not harmful, certain parts of earth cleanse other parts.’ I (the narrator) asked, ‘What happens if I step on wet dung?’ He (the Imam) said, ‘Such things are not harmful.’”

Translation: Muhammad Sarwar — attributed by Thaqalayn·The Arabic above is the original.