Abbas bin 'Abdul 'Azeem al-'Anbari عباس بن عبد العظيم العنبري · The Book of Purification

It was narrated from Ja'far bin 'Amr bin Umayyah Ad-Damri that his father saw the Messenger of Allah (ﷺ) performing Wudu' and wiping over his Khuffs.

"We were with 'Umar when a man came to him and said: 'O Commander of the Believers! sometimes we stay for a month or two without finding any water. Umar said: As if I did not find water, I would not pray until I found water.' 'Ammar bin Yasir said: 'Do you remember, O Commander of the Believer, when you were in such and such a place and we were rearing the camels, and you know that we became Junub?'…