Yahya related to me from Malik from Nafi from Abdullah ibn Umar that one time the Messenger of Allah, may Allah bless him and grant him peace, was speaking to Umar ibn al-Khattab while he was travelling with a troop and Umar swore by his father and he (the Messenger) said, "Allah forbids you to swear by your fathers. If anyone swears, let him swear by Allah or keep silent."
Muwatta Malik Book 22, Hadith 16
← Previous Hadith Yahya related to me from Malik from Yahya ibn Said that Sulayman ibn Yasar said, "I understood from people that when they made the kaffara for a broken oath, they gave a mudd of wheat according to the smaller mudd. They thought that that would compensate for them."

Malik said, "The best of what I have heard about the one who does kaffara for breaking his oath by clothing people is that if he clothes men he clothes them each in one garment. If he clothes women, he clothes them each in two garments, a long shift and a long scarf, because that is what is satisfactory for each of them in the prayer."

Muwatta Malik Book 22, Hadith 15 Next Hadith → Yahya related to me from Malik that he had heard that the Messenger of Allah, may Allah bless him and grant him peace, used tosay, "No, by the Overturner of hearts."

Muwatta Malik Book 22, Hadith 17