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
ibnmajah:649 – ʿAbdullāh b. Saʿīd > al-Muḥāribī > Salāam b. Sulaym or Salm Shak Abū al-Ḥasan And ʾAẓunnuh > Abū al-Aḥwaṣ > Ḥumayd > Anas

"The Messenger of Allah set the time for postnatal bleeding at forty days, except for one who becomes pure before that."  

ابن ماجة:٦٤٩ – حَدَّثَنَا عَبْدُ اللَّهِ بْنُ سَعِيدٍ حَدَّثَنَا الْمُحَارِبِيُّ عَنْ سَلاَّمِ بْنِ سُلَيْمٍ أَوْ سَلْمٍ شَكَّ أَبُو الْحَسَنِ وَأَظُنُّهُ هُوَ أَبُو الأَحْوَصِ عَنْ حُمَيْدٍ عَنْ أَنَسٍ قَالَ

كَانَ رَسُولُ اللَّهِ ﷺ وَقَّتَ لِلنُّفَسَاءِ أَرْبَعِينَ يَوْمًا إِلاَّ أَنْ تَرَى الطُّهْرَ قَبْلَ ذَلِكَ