Lovely ahadith

Mujahid said: ‘I was walking with ibn Umar in a slave market, then we saw some slave dealers gathered around one slave-girl and they were kissing her, when they saw ibn Umar, they stopped and said: ‘Ibn Umar has arrived’. Then ibn Umar came closer to the slave-girl, he touched some parts of her body and then said: ‘Who is the master of this slave-girl, she is just a commodity!’ Musanaf ibn Abi Shayba, Volume 4 page 289 Tradition 20240.

The Prophet said: 'Do not beat the female slaves of Allah.' Then 'Umar came to the Prophet and said: 'O Messenger of Allah, the women have become bold towards their husbands? So, order the beating of them,' and they were beaten. Then many women went around to the family of Muhammad. The next day he said: 'Last night seventy women came to the family of Muhammad, each woman complaining about her husband. You will not find that those (men) are the best of you.' "Darussalam declared this hadith to be authentic (Sahih). 

'Narrated 'Aisha: The wives of the Prophet used to go to Al-Manasi, a vast open place (near Baqia at Medina) to answer the call of nature at night. 'Umar used to say to the Prophet "Let your wives be veiled," but Allah's Apostle did not do so. One night Sauda bint Zam'a the wife of the Prophet went out at 'Isha' time and she was a tall lady. 'Umar addressed her and said, "I have recognized you, O Sauda." He said so, as he desired eagerly that the verses of Al-Hijab (the observing of veils by the Muslim women) may be revealed. So Allah revealed the verses of "Al-Hijab" (A complete body cover excluding the eyes). - Sahih Bukhari 1:4:148

These ahadith really make Caliph Umar and ibn Umar a perfect example for Muslims!