مُسْنَدُ أَحْمَدَ
Musnad Ahmad 2332
Musnad of 'Abdullah bin al-'Abbas bin 'Abdul-Muttalib from the Prophet
It was narrated from Ibn 'Abbas (رضي الله عنه) that he said: The Messenger of Allah (ﷺ) said: "Good health and free time [are] two blessings from Allah that many people do not make good use of."
Musnad Ahmad 2340Its isnad is saheeh, al-Bukhari (6412)]