وَالْمُطَلَّقَاتُ يَتَرَبَّصْنَ بِأَنْفُسِهِنَّ ثَلَاثَةَ قُرُوءٍ
Divorced women are to wait for three qurūʾ. (Qurʾān 2:228)
Thalāthah fixes the number, while qurūʾ is linguistically disputed. Establishing the quantity and determining the intended sense are separate questions.
Hanafi legal interpretation takes qurūʾ here as menstrual periods, while the Shafiʿi view takes it as periods of purity. This is not merely a translation preference; the juristic difference concerns evidence for preferring one possible sense over another.