Musannaf Ibn Abi Shaybah

Hazrat Ibn Abbas (may Allah be pleased with both of them) was asked about a man who goes out for prayer and passes over filth on the way. Hazrat Ibn Abbas (may Allah be pleased with both of them) said, "If the filth is wet, then he should wash it, and if it is dry, then there is no harm."

Ibrahim (regarding a person who passes through an impure place) says that if it is wet, then wash it, and if it is dry, then there is no harm.

Hazrat Ata says that if the impurity is wet, then wash it, and if it is dry, then there is no harm.

Hasan (regarding one who passes over wet impurity) says that he should only wash it; ablution is not necessary.

Hazrat Aamir (regarding carrion, menstrual cloths, or one who passes over dry impurity) says that there is no harm in it.

Hazrat Saeed bin Jubair says that there is no harm in passing over that soil which has been mixed with urine.

Ibrahim (regarding a person who passes over filth while going to the mosque) says that he should not repeat his ablution.