"Ka'b!" He said: "At your service, Messenger of Allah." Thereupon he made a gesture with is hand indicating: Remit half the debt due to you. Ka'b said: "I shall do so, Messenger of Allah." The Prophet (ﷺ) then said: "Get up and discharge"
Sunan Abi Dawud Book 25, Hadith 25
← Previous Hadith The Prophet (ﷺ) said: Conciliation between Muslims is permissible. The narrator Ahmad added in his version: "except the conciliation which makes lawful unlawful and unlawful lawful." Sulayman ibn Dawud added: The Messenger of Allah (ﷺ) said: Muslims are on (i.e. stick to) their conditions.

Sunan Abi Dawud Book 25, Hadith 24 Next Hadith → "Shall I not tell you of the best witnesses ? He is the one who produces his deposition or gives his evidence (the narrator is doubtful) before he is asked for it." 'Abd Allah bin Abi Bakr dobted which of them he said.

Abu Dawud said: Malis said: This refers to a man gives his evidence, but he does not know for whom it is meant. Al-Hamdani said: "He should inform the authorities. Ibn al-Sarh said: "He should give it to the ruler. The work ikhbar (inform) occurs in the version of al-Hamdani." Ibn al-Sarh said: "Ibn Abi 'Amrah and not 'Abd al-Rahman."

Sunan Abi Dawud Book 25, Hadith 26