In the Hijri calendar, the name of the month has been written incorrectly. The month Jumādā al-Ūlā is mistakenly written as Jumādā al-Awwal, which is grammatically incorrect in Arabic. Since Jumādā is a feminine noun, the adjective that follows must also be feminine. Therefore, the correct form is Jumādā al-Ūlā, not Jumādā al-Awwal. --- Arabic Grammar Explanation (Clear & Precise) جمادى (Jumādā) A feminine proper noun (اسم علم مؤنث). The feminine ending ألف مقصورة (ى) marks it as feminine. Rule: When a noun is feminine, its adjective (الصفة) must also be feminine. ➤ الموصوف المؤنث يجب أن يُوصف بصفة مؤنثة. The mistake: الأوّل → masculine adjective (صفة مذكرة). Using it after a feminine noun (جمادى) breaks the agreement rule. The correct form: الأولى → feminine adjective (صفة مؤنثة). Matches the noun جمادى → so the correct full name is: جمادى الأولى Comparison: ❌ جمادى الأوّل → wrong (masculine adjective with feminine noun) ✔️ جمادى الأولى → correct (feminine adjective with feminine noun)