Hadith #2189 (Sunan Abi Dawud)
Book: Divorce (Kitab Al-Talaq)
Narrator(s): Abdul 'Aziz bin 'Abdul Samad عبد العزيز بن عبد الصمد, Amr bin Shu'aib bin Muhammad عمرو بن شعيب بن محمد السهمي, Hisham bin Abi 'Abdullah al-Dastawa'i هشام بن أبي عبد الله الدستوائي, Matr bin Tahman al-Waraq مطر بن طهمان الوراق أبو رجاء الخراساني, Muslim bin Ibrahim al-Azdy مسلم بن إبراهيم الأزدي الفراهيدي, Shu'aib bin Muhammad bin 'Abdullah شعيب بن محمد بن عبد الله بن عمرو
Grade: Da'if

The Prophet (ﷺ) said: The divorce of a slave-woman consists in saying it twice and her waiting period is two menstrual courses (qur’) AbuAsim said: A similar tradition has been narrated to me by Muzahir and al-Qasim on the authority of Aisha from the Prophet (ﷺ), except that he said: And her waiting period (‘iddah) is two courses.
Abu Dawud said: This tradition is obscure.

Source: https://parallelquran.com/hadith/sunan-abi-dawud-2189/

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Hadith #3597 (Sunan Abi Dawud)
Book: The Office of the Judge (Kitab Al-Aqdiyah)
Narrator(s): Ali bin al-Husain bin 'Ali علي بن الحسين بن علي - زين العابدين, Asim bin Muhammad bin Zayd عاصم بن محمد بن زيد العمري, ibn Umar, Matr bin Tahman al-Waraq مطر بن طهمان الوراق أبو رجاء الخراساني, Nafie' نافع مولى ابن عمر, Umar bin Yonus bin al-Qasim عمر بن يونس بن القاسم
Grade: Sahih

We were sitting waiting for Abdullah ibn Umar who came out to us and sat. He then said: I heard the Messenger of Allah (ﷺ) as saying: If anyone’s intercession intervenes as an obstacle to one of the punishments prescribed by Allah, he has opposed Allah; if anyone disputes knowingly about something which is false, he remains in the displeasure of Allah till he desists, and if anyone makes an untruthful accusation against a Muslim, he will be made by Allah to dwell in the corrupt fluid flowing from the inhabitants of Hell till he retracts his statement.

Source: https://parallelquran.com/hadith/sunan-abi-dawud-3597/