Malik related to me from al-Ala ibn Abd ar-Rahman from Mabad ibn Kab as-Salami from his brother Abdullah ibn Kab ibn Malik al-Ansari from Abu Umama that the Messenger of Allah, may Allah bless him and grant him peace, said, "Whoever cuts off the right of a muslim man by his oath, Allah forbids him the Garden and obliges the Fire for him." They said, "Even if it is something insignificant, Messenger of Allah? ﷺ " He said, "Even if it is a tooth-stick, even if it is a tooth-stick," repeating it three times.