Read all Ahadith in the book of manumission of slaves by sunan abu dawood

Narrated Amr bin Shuaib: on his father's authority, told that his grandfather reported the Prophet صلی ‌اللہ ‌علیہ ‌وسلم said: A slave who has entered into an agreement to purchase his freedom is a slave as long as a dirham of the agreed price remains to be paid.

Narrated Amr bin Shuaib: On his father's authority, told that his grandfather reported the Prophet صلی ‌اللہ ‌علیہ ‌وسلم said: If any slave entered into an agreement to buy his freedom for one hundred uqiyahs and he pays them all but ten, he remains a slave (until he pays the remaining ten); and if a slave entered into an agreement to purchase his freedom for one hundred dinars, and he pays them all but ten dinars, he remains a slave (until he pays the remaining ten). Abu Dawud said: This narrator Abbas al-Jariri is not the same person. They said: It is misunderstanding. He is some other narrator.

Narrated Umm Salamah, Ummul Muminin: The Messenger of Allah صلی ‌اللہ ‌علیہ ‌وسلم said to us: If one of you has a slave, and he enters into an agreement to purchase his freedom, and can pay the full price, she must veil herself from him.

Urwah quoting from Aishah said that Barirah came to her seeking her help to purchase her freedom, and she did not pay anything for her freedom. Aishah said to her: Return to your people ; if you like that I make payment for the purchase of your freedom on your behalf and I shall have the right to inherit from you, I shall do so. Barirah mentioned it to her people, but they refused and said: If she wants to purchase your freedom for reward from Allah, she may do so, but the right to inherit from her shall be ours. She mentioned it to the Messenger of Allah صلی ‌اللہ ‌علیہ ‌وسلم. The Messenger of Allah صلی ‌اللہ ‌علیہ ‌وسلم said: Purchase her (freedom) and set her free, for the right of inheritance belongs to only to the one who set a person free. The Messenger of Allah (saw) then stood up and said: If anyone makes a condition which is not in Allah's Book, he has no right to it, even if he stipulates it hundred times. Allah's condition is more valid and binding.

Aishah said: Barirah came seeking my help to purchase her freedom. She said: I have arranged with my people to buy my freedom for nine 'uqiyahs: one to be paid annually. So help me. She (Aishah) said: If your people are willing that I should count them ('uqiyahs) out to them all at one time and set you free and that I shall have the right to inherit from you, I shall do so. She then went to her people. The narrator then transmitted the rest of the tradition like the version of al-Zuhri. He added to the wordings of the Prophet صلی ‌اللہ ‌علیہ ‌وسلم in the last: What is the matter with people that one of you says: Set free, O so-and-so, and the right of inheritance belongs to me. The right of inheritance belongs to the one who has set a person free.

Narrated Aishah, Ummul Muminin: Juwayriyyah, daughter of al-Harith ibn al-Mustaliq, fell to the lot of Thabit ibn Qays ibn Shammas, or to her cousin. She entered into an agreement to purchase her freedom. She was a very beautiful woman, most attractive to the eye. Aishah said: She then came to the Messenger of Allah صلی ‌اللہ ‌علیہ ‌وسلم asking him for the purchase of her freedom. When she was standing at the door, I looked at her with disapproval. I realised that the Messenger of Allah صلی ‌اللہ ‌علیہ ‌وسلم would look at her in the same way that I had looked. She said: Messenger of Allah, I am Juwayriyyah, daughter of al-Harith, and something has happened to me, which is not hidden from you. I have fallen to the lot of Thabit ibn Qays ibn Shammas, and I have entered into an agreement to purchase of my freedom. I have come to you to seek assistance for the purchase of my freedom. The Messenger of Allah صلی ‌اللہ ‌علیہ ‌وسلم said: Are you inclined to that which is better? She asked: What is that, Messenger of Allah? He replied: I shall pay the price of your freedom on your behalf, and I shall marry you. She said: I shall do this. She (Aishah) said: The people then heard that the Messenger of Allah صلی ‌اللہ ‌علیہ ‌وسلم had married Juwayriyyah. They released the captives in their possession and set them free, and said: They are the relatives of the Messenger of Allah صلی ‌اللہ ‌علیہ ‌وسلم by marriage. We did not see any woman greater than Juwayriyyah who brought blessings to her people. One hundred families of Banu al-Mustaliq were set free on account of her. Abu dawud said: This evidence shows that a Muslim ruler may marry a slave woman himself.

Narrated Umm Salamah, Ummul Muminin: Safinah said: I was a slave of Umm Salamah, and she said: I shall emancipate you, but I stipulate that you must serve the Messenger of Allah صلی ‌اللہ ‌علیہ ‌وسلم as long as you live. I said: Even if you do not make a stipulation, I shall not leave the Messenger of Allah صلی ‌اللہ ‌علیہ ‌وسلم. She then emancipated me and made the stipulation with me.

Narrated Abu al-Malih: On his father's authority (this is AbulWalid's version): A man emancipated a share in a slave and the matter was mentioned to the Prophet صلی ‌اللہ ‌علیہ ‌وسلم. He said: Allah has no partner. Ibn Kathir added in his version: The Prophet صلی ‌اللہ ‌علیہ ‌وسلم allowed his emancipation.

Narrated Abu Hurairah: A man emancipated his share in a slave. The Prophet صلی ‌اللہ ‌علیہ ‌وسلم allowed his (full) emancipation, and required him to pay the rest of his price.

Qatadah narrated with his chain of narrators: The Prophet صلی ‌اللہ ‌علیہ ‌وسلم said: If a man emancipates a slave shared by him with another man, his emancipation rests with him (who emancipated his share). This is the version of Ibn Suwaid.