Hmmm, I guess Ali Sina doesn't know much about "coitus interruptus". Coitus interruptus is an old birth control's technique for intercourse.
https://en.wikipedia.org/wiki/Coitus_interruptusNow, people can use a condom, pill, or other modern birth control.
Here are several hadith that rape is strictly forbidden.
And Safiyya bint 'Ubaid said:
"A governmental male-slave tried to seduce a slave-girl from the Khumus of the war booty till he deflowered her by force against her will; therefore 'Umar flogged him according to the law, and exiled him, but he did not flog the female slave because the male-slave had committed illegal sexual intercourse by force, against her will." Az-Zuhri said regarding a virgin slave-girl raped by a free man: The judge has to fine the adulterer as much money as is equal to the price of the female slave and the adulterer has to be flogged (according to the Islamic Law); but if the slave woman is a matron, then, according to the verdict of the Imam, the adulterer is not fined but he has to receive the legal punishment (according to the Islamic Law).
Sahih al-Bukhari Vol. 9, Book 89, Hadith 81
Jabir reported that 'Abdullah b. Ubayy b. Salul had two slave-girls;
one was called Musaika and the other one was called Umaima and he compelled them to prostitution (for which'Abdullah b. Ubayy b. Salul compelled them). They made a complaint about this to Allah's Messenger (Peace be upon him) and it was upon this that this verse was revealed:" And compel not your slave-girls to prostitute" up to the words:" Allah is Forgiving
Sahih Muslim Vol. 7, Book 43, Hadith 7181
Jabir ibn Abdullah : Musaykah, a slave-girl of some Ansari, came and said: My master forces me to commit fornication. Thereupon the following verse was revealed: "But force not your maids to prostitution (when they desire chastity)."
Abu Dawud Book 6, Hadith 2304.
"Serve Allah, and join not any partners with Him; and do good- to parents, kinsfolk, orphans, those in need, neighbours who are near, neighbours who are strangers, the companion by your side, the wayfarer (ye meet), and what your right hands possess (female slaves): For Allah loveth not the arrogant, the vainglorious;-" (4:36)
Your servants and your slaves are your brothers. Anyone who has slaves should give them from what he eats and wears. He should not charge them with work beyond their capabilities. If you must set them to hard work, in any case I advise you to help them.
Bukhari, Iman, 22; Adab, 44; Muslim, Iman, 38–40; Abu Dawud, Adab, 124
Sallam ibn 'Amr reported from one of the Companions of the Prophet, may Allah bless him and grant him peace, said, "Your slaves are your brothers, so treat him well. Ask for their help in what is too much for you and help them in what is too much for them."
Al-Adab al-Mufrad Al-Bukhari , Nr. 190.
Abu Mas'ud al-Badri reported: "I was beating my slave with a whip when I heard a voice behind me: Understand, Abu Masud; but I did not recognise the voice due to intense anger. He (Abu Mas'ud) reported: As he came near me (I found) that he was the Messenger of Allah (may peace be upon him) and he was saying: Bear in mind, Abu Mas'ud; bear in mind. Abu Mas'ud. He (Aba Maslad) said: threw the whip from my hand. Thereupon he (the Holy Prophet) said: Bear in mind, Abu Mas'ud; verily Allah has more dominance upon you than you have upon your slave. I (then) said: I would never beat my servant in future.
Sahih Muslim Book 15, Number 4086
“O you men! We have created you of a male and a female, and then We made you (into different) races and tribes so that you may know (and “recognise) each other. Surely the most honourable of you with Allah is the one who is most pious among you; surely Allah is All-Knowing and “Aware.” The Qur'an 49:13
What the early classical scholars said about rape for slavery?
Imam Malik said:
In our view the man who rapes a woman, regardless of whether she is a virgin or not, if she is a free woman he must pay a "dowry" like that of her peers, and if she is a slave he must pay whatever has been detracted from her value. The punishment is to be carried out on the rapist and there is no punishment for the woman who has been raped, whatever the case. (Imam Maalik, Al-Muwatta', Volume 2, page 734)
Malik related to me from Ibn Shihab that Abd al-Malik ibn Marwan (5th Caliph) gave a judgement that the rapist had to pay the raped woman her bride- price. Yahya said that he heard Malik say, “What is done in our community about the man who rapes a woman, virgin or non-virgin, if she is free, is that he must pay the bride-price of the like of her. If she is a slave, he must pay what he has diminished of her worth. The hadd-punishment in such cases is applied to the rapist, and there is no punishment applied to the raped woman.” (Muwatta Imam Malik Judgements: Book 36, Hadith 14)
Imam Al Shaafi’I said:
"If a man acquires by force a slave-girl, then has sexual intercourse with her after he acquires her by force, and if he is not excused by ignorance, then the slave-girl will be taken from him, he is required to pay the fine, and he will receive the punishment for illegal sexual intercourse." (Imam Al Shaafi'i, Kitaabul Umm, Volume 3, page 253)
Hope this helps