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
bayhaqi:1543 – Abū ʿAbdullāh al-Ḥāfiẓ > Abū Bakr b. Isḥāq al-Faqīh > Ismāʿīl b. Isḥāq > Sulaymān b. Ḥarb > Ḥammād b. Zayd > al-Jald b. Ayyūb > Muʿāwiyah b. Qurrah > Anas

[Machine] The woman experiencing istihadah waits for three, five, seven, nine, or ten days.  

البيهقي:١٥٤٣ – وَأَمَّا الْحَدِيثُ الَّذِي أَخْبَرَنَا أَبُو عَبْدِ اللهِ الْحَافِظُ أنبأ أَبُو بَكْرِ بْنُ إِسْحَاقَ الْفَقِيهُ أنبأ إِسْمَاعِيلُ بْنُ إِسْحَاقَ ثنا سُلَيْمَانُ بْنُ حَرْبٍ ثنا حَمَّادُ بْنُ زَيْدٍ عَنِ الْجَلْدِ بْنِ أَيُّوبَ عَنْ مُعَاوِيَةَ بْنِ قُرَّةَ عَنْ أَنَسٍ قَالَ

الْمُسْتَحَاضَةُ تَنْتَظِرُ ثَلَاثًا خَمْسًا سَبْعًا تِسْعًا عَشْرًا لَا تُجَاوِزُ  

See similar narrations below:

Collected by Dārimī
darimi:867 – Abū al-Nuʿmān > Ḥammād b. Zayd > al-Jald b. Ayyūb > Muʿāwiyah b. Qurrah > Anas

[Machine] "The woman who is experiencing Istihadah waits for three, four, five, six, seven, eight, nine, ten."  

الدارمي:٨٦٧ – أَخْبَرَنَا أَبُو النُّعْمَانِ حَدَّثَنَا حَمَّادُ بْنُ زَيْدٍ عَنِ الْجَلْدِ بْنِ أَيُّوبَ عَنْ مُعَاوِيَةَ بْنِ قُرَّةَ عَنْ أَنَسٍ قَالَ

«الْمُسْتَحَاضَةُ تَنْتَظِرُ ثَلَاثًا أَرْبَعًا خَمْسًا سِتًّا سَبْعًا ثَمَانِيًا تِسْعًا عَشْرًا»