مُسْنَدُ أَحْمَدَ
Musnad Ahmad 3234
Musnad of 'Abdullah bin al-'Abbas bin 'Abdul-Muttalib from the Prophet
It was narrated from Ibn ‘Abbas (رضي الله عنه) from The Messenger of Allah (ﷺ) that he set out in the year of the conquest in the month of Ramadan, and he fasted until he reached al-Kadeed, then he broke his fast.
Musnad Ahmad 3258Its isnad is saheeh, al-Bukhari (1944) and Muslim (1113)]