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

ذِكْرُ الْإِبَاحَةِ لِلرِّجَالِ وَالنِّسَاءِ أَنْ يَتَوَضَّؤُوا مِنْ إِنَاءٍ وَاحِدٍ

ibnhibban:1265 – Abū Khalīfah > al-Qaʿnabī > Mālik > Nāfiʿ

[Machine] Narrated by Al-Qa'nabi from Malik from Nafi' that Ibn 'Umar used to say, "Verily, men and women used to perform ablution during the time of the Messenger of Allah ﷺ altogether."  

ابن حبّان:١٢٦٥ – أَخْبَرَنَا أَبُو خَلِيفَةَ قَالَ

حَدَّثَنَا الْقَعْنَبِيُّ عَنْ مَالِكٍ عَنْ نَافِعٍ أَنَّ ابْنَ عُمَرَ كَانَ يَقُولُ «إِنَّ الرِّجَالَ وَالنِّسَاءَ كَانُوا يَتَوَضَّؤونَ فِي زَمَنِ رَسُولِ اللَّهِ ﷺ جَمِيعًا»  

See similar narrations below:

Collected by Mālik
malik:2-14 – Mālik > Nāfiʿ

Yahya related to me from Malik from Nafi that Abdullah ibn Umar used to say that men and their wives used to do wudu together in the time of the Messenger of Allah.  

مالك:٢-١٤ – وَحَدَّثَنِي عَنْ مَالِكٍ عَنْ نَافِعٍ

أَنَّ عَبْدَ اللَّهِ بْنَ عُمَرَ كَانَ يَقُولُ إِنْ كَانَ الرِّجَالُ وَالنِّسَاءُ فِي زَمَانِ رَسُولِ اللَّهِ ﷺ لَيَتَوَضَّئُونَ جَمِيعًا