What is the minimum number of days implied by an oath sworn upon 'days' (ayyam)?

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The minimum number of days implied by an oath sworn upon 'ayyam' is three, as this constitutes the minimum for the plural form 'jam' (plural of a small number). This is based on the divine saying: "And remember Allah through the specified number of days" (Quran 2:203). These days are the Days of Tashreeq.