مُسْنَدُ أَحْمَدَ
Musnad Ahmad 2568
Musnad of 'Abdullah bin al-'Abbas bin 'Abdul-Muttalib from the Prophet
It was narrated from Ibn 'Abbas (رضي الله عنه) that he heard the Prophet (ﷺ) deliver the khutbah in ‘Arafat. He said: "Whoever cannot find an izar, let him wear pants; whoever cannot find sandals, let him to wear leather slippers (khuffain)."
Musnad Ahmad 2583Its isnad saheeh, al-Bukhari (1841) and Muslim (1178)]