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.
Qurʾān Bukhārī Muslim Nasāʾī Abū Dāwūd Tirmidhī Ibn Mājah Mālik Aḥmad Dārimī Ḥākim Ibn Ḥibbān Ṭabarānī Nasāʾī's Kubrá Bayhaqī al-Luʾluʾ wa-al-Marjān Ibn Rajab's Fifty Riyāḍ al-Ṣāliḥīn Aḥmad's Zuhd Suyūṭī
darimi:872 – al-Ḥakam b. al-Mubārak > Muḥammad b. Abū Zakariyyā > Abū Muḥammad > Abū Saʿd al-Ṣāghānī > Sufyān > al-Rabīʿ > al-Ḥasan

[Machine] "Abu Muhammad is Abu Saad As-Saghani, reporting from Sufyan, who heard from Ar-Rabi' who said, 'The minimum duration of menstruation is three [days].'"  

الدارمي:٨٧٢ – أَخْبَرَنَا الْحَكَمُ بْنُ الْمُبَارَكِ أَنبَأَنَا مُحَمَّدُ بْنُ أَبِي زَكَرِيَّا قَالَ

أَبُو مُحَمَّدٍ هُوَ أَبُو سَعْدٍ الصَّاغَانِيُّ عَنْ سُفْيَانَ عَنِ الرَّبِيعِ عَنِ الْحَسَنِ قَالَ «أَدْنَى الْحَيْضِ ثَلَاثٌ»