Tawus (may Allah have mercy on him) narrates from the Prophet (peace and blessings be upon him) that he (peace and blessings be upon him) said: "There is no divorce before ownership, and there is no retaliation for wounds less than a mudihah (a wound that exposes the bone)."
This narration is munqati' (its chain is broken).
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الجنايات / 16103