Musnad Ahmad 2952

It was narrated that Ibn 'Abbas (رضي الله عنه) said: The Messenger of Allah (ﷺ) wiped over the khuffain, so ask these people who say that the Prophet (ﷺ) wiped (over the khuffain) did he do it before al-Ma’idah was revealed, or after that? By Allah, he did not wipe (over the khuffain) after al-Ma'idah (was revealed). To wipe over the back of some passer-by in the wilderness is dearer to me than wiping over them (the khuffain)”