Fasting is one of universal worship. Almost religions do it. Fasting is recommended in Islam consists of obligatory (fardlu) and optional (optional) fasting. There were optional fasting that one of the uniqueness of fasting , namely Daud fasting. It’s a day fasting and breaking one next day or interval fasting. However, Daud fasting is only performed by a minority of people. This could be because a lot of people who are doubt to the validity of the legal basis of Daud fasting. Many people are not aware of the virtues and benefit of fasting for the spiritual and physical health. Turning from the background of the study above, this study is intended to keep track of the traditions on which the law of fasting stand. Further, research will also examine the validity of the hadith about Daud fasting and psychological and health benefits for the people who do.
Therefore, this research focuses on the quality of sanad and matan hadith of Daud fasting and the advantages for healthy. To make this research systematicly, the researcher use the method of thematic hadith. To analysis the data, the researcher use the descriptive method. Then to understand the hadith, the researcher use several approaches. Namely language approach, contextual and healthy science and psychology.
From the research, researcher conclude that the quality of hadith about Daud fasting, most of the quality of hadith are valid (Shahih), part of matan are good (hasan), shahih lighairihi. Several hadith have different editorial, but not contradictory, it’s mean that have similar meaning. From the explanation above conclude that fasting Daud have some benefits for healthy. Especially are detoxification, accelerate the regeneration of cell of body, and increase endurance body.