Imam Malik narrates: "Whoever alone sees the crescent of Ramadan, he should fast, because it is not right for him not to fast, as he knows that this day is part of Ramadan. Whoever alone sees the crescent of Shawwal, he should not break the fast, because people will accuse him of not fasting, as among them are some who are not trustworthy. Then he should mention this matter when the crescent becomes apparent to the people and they say: We have seen the crescent."