Hadith #1544 (Jami' al-Tirmidhi)
Book: The Book on Vows and Oaths
Narrator(s): Abu Bakra al-Thaqafi, al-Dahhak bin Mukhlad Abu 'Asim al-Nabil الضحاك بن مخلد أبو عاصم النبيل, Bkar bin 'Abdul 'Aziz بكار بن عبد العزيز بن أبي, Muhammad bin al-Muthna - al-Zaman محمد بن المثنى أبو موسى - الزمن

“We were seven brothers without a servant except one, and one of us slapped her, so the Prophet (ﷺ) ordered us to free her.”

Source: https://parallelquran.com/hadith/jami-al-tirmidhi-1544/