Weak (da'if) — scholars do not use this report as evidence for rulings.
Nafi' said:Accompanied by 'Abd Allah b. 'Umar, I went to Ibn 'Abbas for a certain work. He (Ibn 'Abbas) narrated a tradition saying: A man passed by the Messenger of Allah (ﷺ) in a street, while he returned from the toilet or just urinated. He (the man) saluted him, but the Prophet did not return the salutation. When the man was about to disappear (from sight) in the street he struck the wall with both his hands and wiped his face with them. He then struck another stroke and wipes his arms. He then returned the man's salutation. Then he said: I did not return the salutation to you because I was not purified. Abu Dawud said: I heard Ahmad b. Hanbal say: Muhammad b. Thabit reported a rejected…