مُسْنَدُ أَحْمَدَ
Musnad Ahmad 3515
Musnad of 'Abdullah bin al-'Abbas bin 'Abdul-Muttalib from the Prophet
It was narrated from Ibn ‘Abbas (رضي الله عنه) that The Prophet (ﷺ) said: “The Black Stone is from Paradise. It was whiter than snow, until the sins of the people of Shirk turned it black."
Musnad Ahmad 3537Saheeh, apart from the phrase "It was whiter than snow...”;