Allah will not punish you for what is unintentional in your oaths, but He will punish you for your deliberate oaths; for its expiation feed ten Masakin (poor persons), on a scale of the average of that with which you feed your own families, or clothe them or manumit a slave. But whosoever cannot afford (that), then he should fast for three days. That is the expiation for the oaths when you have sworn . And protect your oaths (i.e. do not swear much) . Thus Allah make clear to you His Ayat (proofs, evidence, verses, lessons, signs, revelations, etc.) that you may be grateful. {AL Quran, Surah Al Maeda (5), Verse 89} Narrated Abdullah Radiallahu anhu : The Prophet Sallallahu Alaihi Wasallam said, "Whoever has to take an oath should swear by Allah or remain silent." Sahih Bukhari, Vol 3, Book 48, No. 844: Narrated Ibn 'Umar Radi Allahu Anhuma : that he found 'Umar bin Al-Khattab Radi Allahu Anhu in a group of people and he was swearing by his father. So Allah's ...