Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
darimi:950Khalīfah > ʿAbd al-Aʿlá > Maʿmar > al-Zuhrī > Bi-al-Aqrāʾ > Abū Muḥammad Ahl al-Ḥijāz Yaqūlūn al-Aqrāʾ al-Aṭhār > Ahl al-ʿIrāq > al-Ḥayḍ > ʿAbdullāh

[Machine] "Abu Muhammad, the people of the Hijaz say that al-Aqrā'u al-Aṭhār (referring to a specific tribe or group of individuals) are the purest. The people of Iraq said it is al-Hayd (menstruation). Abdullah said, and I say that it is al-Hayd."  

الدارمي:٩٥٠أَخْبَرَنَا خَلِيفَةُ حَدَّثَنَا عَبْدُ الْأَعْلَى عَنْ مَعْمَرٍ عَنِ الزُّهْرِيِّ قَالَ «بِالْأَقْرَاءِ» قَالَ

أَبُو مُحَمَّدٍ أَهْلُ الْحِجَازِ يَقُولُونَ الْأَقْرَاءُ الْأَطْهَارُ وَقَالَ أَهْلُ الْعِرَاقِ هُوَ الْحَيْضُ قَالَ عَبْدُ اللَّهِ وَأَنَا أَقُولُ هُوَ الْحَيْضُ