Musnad Abu Ya'la al-Mawsili 155:12

Al-Husayn ibn al-Aswad narrated to us, 'Amr ibn Muhammad al-'Anqazi narrated to us, Qays ibn al-Rabi' informed us, from Bakr ibn Wa'il, from al-Zuhri, from Sa'id ibn al-Musayyib, from Abu Hurayrah, who said: The Messenger of Allah (may Allah bless him and grant him peace) said: "When you carry [a debt or a burden], then delay [it], for the man is bound and the hand is closed."