مُسْنَدُ أَحْمَدَ
Musnad Ahmad 3098
Musnad of 'Abdullah bin al-'Abbas bin 'Abdul-Muttalib from the Prophet
It was narrated that Ibn Abbas (رضي الله عنه) said: The Messenger of Allah (ﷺ) said: “I was enjoined to use the siwak until I thought that Qur'an or revelation would come down to me concerning it.
Musnad Ahmad 3122Hasan because of corroborating evidence; this is a da’eef is