Imam al-Bukhari (may Allah have mercy on him) said in the chapter heading: "It is mentioned from Sayyiduna Umar (may Allah be pleased with him): 'Retaliation is taken from a woman for a man in every deliberate (offence) that reaches the life or wounds less than that.' Umar bin Abd al-Aziz (may Allah have mercy on him) said the same, and Abu al-Zinad (may Allah have mercy on him) (reported it) from his companions."
He said: "The sister of al-Rubayyi' wounded a person, and the Prophet (peace and blessings be upon him) said: 'Retaliation (applies).'"
Al-Shaykh (may Allah have mercy on him) said: "As for the narration on this from the two Umars (Sayyiduna Umar bin al-Khattab (may Allah be pleased with him) and Umar bin Abd al-Aziz (may Allah have mercy on him)), it has already passed from Abd al-Aziz bin Umar, that in a document of Umar bin Abd al-Aziz (may Allah have mercy on him) it was written that Sayyiduna Umar bin al-Khattab (may Allah be pleased with him) said: 'Retaliation is taken for a slave from a slave in every deliberate (offence) that reaches the life or less than that.'"
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الجنايات / Q15968