“A good, authentic, singular hadith, from the hadiths of Saʿīd al-Maqburī. Mālik ibn Anas also narrated something similar from Saʿīd al-Maqburī, from Abū Hurayrah, from the Prophet ﷺ.”
I say: As for this wording, it is weak, because Abū Khālid al-Dālānī made frequent errors and engaged in concealment in transmission, as al-Ḥāfiẓ stated in al-Taqrīb. Moreover, he related it using an ambiguous “from” formula, as you can see.
A number of narrators differed from him in its wording, among them Mālik, who narrated it—as cited above from al-Tirmidhī—from Saʿīd al-Maqburī with the wording:
“Whoever owes his brother a wrong, let him seek his absolution from it, for there will then be neither dinar nor dirham ...”
The hadith does not contain the words, “May Allah have mercy on a servant.”
Al-Bukhārī transmitted it (4/238), as did Ibn Jarīr, Ibn ʿAbd al-Barr (20/42 and 23/233–234), and others.
Then al-Bukhārī transmitted it (2/99), as did Aḥmad (2/435 and 506), through Ibn Abī Dhiʾb, who said: Saʿīd al-Maqburī narrated it to us with the same wording.
I then found for al-Dālānī a strong corroborating transmission, as well as a weak supporting report.
As for the corroborating transmission, it is from Imam Mālik. Muḥammad ibn al-Ḥārith al-Ḥarrānī narrated it: Muḥammad ibn Salamah narrated to us, from Zayd, from Mālik, from Saʿīd, with it.
Ibn Ḥibbān transmitted it (7318, al-Iḥsān), as did Abū Nuʿaym in al-Ḥilyah (6/343). He said: “It is authentic in the Muwaṭṭaʾ and singular through Zayd from Mālik.”
I say: Its chain of transmission is sound; its narrators are those of Muslim, except for Muḥammad ibn al-Ḥārith al-Ḥarrānī. Al-Nasāʾī said: