Also, Ibn Qudamah says, in Al-Mughni, that washing the feet...

Also, Ibn Qudamah says, in Al-Mughni, that washing the feet (in the ablution) is compulsory for most scholars. He then reports from (Imam) Ali, Ibn Abbas, Anas and Shi’bi that rubbing them are obligatory; and he reports the option between rubbing and washing from Ibn Jabir. Nawawi, in Al-Majmu’, says: Our disciples have quoted Muhammad Ibn Jarir as believing in the option between washing and rubbing the feet. Khattabi narrated the same concept from Al-Jaba’i, the Mu’tazilite.

Some who take in the surface indications of the traditions have deemed allowable both washing and rubbing. As you see, no such consensus exists among the…