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.
darimi:1182ʿAbdullāh b. Ṣāliḥ > al-Layth > al-Ḥārith b. Yaʿqūb > Saʿīd b. Yasār Abū al-Ḥubāb > Liāb. ʿUmar Mā

[Machine] I asked Ibn Umar, "What do you say about the slave girls when I discipline them?" He replied, "What do you mean by disciplining?" So I mentioned striking them on the buttocks, and he said, "Does anyone among the Muslims do that?"  

الدارمي:١١٨٢أَخْبَرَنَا عَبْدُ اللَّهِ بْنُ صَالِحٍ حَدَّثَنِي اللَّيْثُ حَدَّثَنِي الْحَارِثُ بْنُ يَعْقُوبَ عَنْ سَعِيدِ بْنِ يَسَارٍ أَبِي الْحُبَابِ قَالَ

قُلْتُ لِابْنِ عُمَرَ مَا تَقُولُ فِي الْجَوَارِي حِينَ أُحَمِّضُ لَهِنَّ؟ قَالَ «وَمَا التَّحْمِيضُ؟» فَذَكَرْتُ الدُّبُرَ فَقَالَ «هَلْ يَفْعَلُ ذَلكَ أَحَدٌ مِنَ الْمُسْلِمِينَ؟»