مُسْنَدُ أَحْمَدَ
Musnad Ahmad 3644
Musnad of Abdullah bin Mas'ood
It was narrated that 'Abdullah (رضي الله عنه) said: The Messenger of Allah (ﷺ) said: “Paradise is closer to one of you than his shoelace and the Fire is likewise."
Musnad Ahmad 3667Its isnad is saheeh, al-Bukhari (6488)]