"Adda' bin Khalid bin Hawdhah said to me: 'Shall I not read to you a letter that the Messenger of Allah ﷺ, wrote to me?' I said: 'Yes.' So he took out a letter. In it was: 'This is what 'Adda' bin Khalid bin Hawdhah bought [from] Muhammad the Messenger of Allah ﷺ He bought from him a slave' or 'a female slave, having no ailments, nor being a runaway, not having any malicious behavior. Sold by a Muslim to a Muslim.'" (Using translation from Ibn Mājah 2251)
قَالَ الْعَدَّاءُ بْنُ خَالِدِ بْنِ هَوْذَةَ أَلَا أُقْرِئُكُمْ كِتَابًا كَتَبَهُ لِي رَسُولُ اللهِ ﷺ؟ فَقُلْنَا بَلَى فَإِذَا فِيهِ مَكْتُوبٌ بِسْمِ اللهِ الرَّحْمَنِ الرَّحِيمِ هَذَا مَا اشْتَرَى الْعَدَّاءُ بْنُ خَالِدِ بْنِ هَوْذَةَ مِنْ مُحَمَّدٍ رَسُولِ اللهِ ﷺ اشْتَرَى مِنْهُ عَبْدًا أَوْ أَمَةً شَكَّ عُثْمَانُ بِيَاعَةً أَوْ بَيْعَ الْمُسْلِمِ الْمُسْلِمَ لَا دَاءَ وَلَا غَائِلَةَ وَلَا خِبْثَةَ