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:21811 – Abū ʿAbdullāh al-Ḥāfiẓ > Abū al-Walīd > al-Ḥasan b. Sufyān > Abū Bakr > al-Muʿtamir b. Sulaymān > Kathīr b. Nubātah > Ibn Sīrīn

[Machine] If a man buys a slave girl who has not yet reached puberty, he may release her after three months.  

البيهقي:٢١٨١١ – أَخْبَرَنَا أَبُو عَبْدِ اللهِ الْحَافِظُ أنبأ أَبُو الْوَلِيدِ ثنا الْحَسَنُ بْنُ سُفْيَانَ ثنا أَبُو بَكْرٍ ثنا الْمُعْتَمِرُ بْنُ سُلَيْمَانَ عَنْ كَثِيرِ بْنِ نُبَاتَةَ عَنِ ابْنِ سِيرِينَ قَالَ

إِذَا اشْتَرَى الرَّجُلُ الْوَصِيفَةَ لَمْ تَبْلُغِ الْمَحِيضَ اسْتَبْرَأَهَا بِثَلَاثَةِ أَشْهُرٍ  

See similar narrations below:

Collected by Dārimī
darimi:956 – Muḥammad b. al-Mubārak > ʿUmar b. ʿAbd al-Wāḥid > al-Awzāʿī > Saʾalt al-Zuhrī

[Machine] About the man who buys a young girl who has not yet reached puberty or become pregnant, for how long can he keep her? He said, "For three months."  

الدارمي:٩٥٦ – أَخْبَرَنَا مُحَمَّدُ بْنُ الْمُبَارَكِ حَدَّثَنَا عُمَرُ بْنُ عَبْدِ الْوَاحِدِ عَنِ الْأَوْزَاعِيِّ قَالَ سَأَلْتُ الزُّهْرِيَّ

عَنِ الرَّجُلِ يَبْتَاعُ الْجَارِيَةَ لَمْ تَبْلُغِ الْمَحِيضَ وَلَا تَحْمِلُ مِثْلُهَا بِكَمْ يَسْتَبْرِئُهَا؟ قَالَ «بِثَلَاثَةِ أَشْهُرٍ»