مُسْنَدُ أَحْمَدَ
Musnad Ahmad 2858
Musnad of 'Abdullah bin al-'Abbas bin 'Abdul-Muttalib from the Prophet
It was narrated that Ibn ‘Abbas (رضي الله عنه) said: The Prophet (ﷺ) wanted to do wudoo’ from a waterskin, and it was said to him that it was made from the skin of an animal that had died naturally. He said: “Tanning takes away its filth, abomination or impurity.”
Musnad Ahmad 2878Hasan]