So here I'll prove that the Husband of Safiyya Bint Huayy(R.A) before The Prophet SAW,as we will see in the hadith that when the Husband of Safiyyah was so rough that when he slapped Safiyya R.A he made a scar on her face.
Safiyyah said, ‘It was caused by my ex-husband when I told him of my dream in which I saw as if a moon had fallen into my lap, he [Kinana] slapped me and said, ‘Do you aspire to marry the king of Yathrib?’ (At-Tabarani, Al-Mu’jam al-Kabir, volume 24, page 67) [5]
Hz. Safiyya had a small scar on her face. The Prophet saw it and asked her, “What is this?” Hz. Safiyya answered:
“When I married Kinana, I saw a dream on the first night. In my dream, the moon came from Madinah and fell onto my lap. When I informed Kinana about my dream, he got very angry and said, ‘You want to marry Muhammad, the king of Hejaz.’ Then, he slapped me. This scar is the trace of that blow.”[1]
And from this we see,that the Prophet SAW was fair to marry her,because her past husband was extremely abusive.