Sahih Muslim 1523a
Anas b. Malik (Allah be pleased with him) reported: We were forbidden that a townsman should sell for a man of the desert, even if he is his brother or father.
وَحَدَّثَنَا يَحْيَى بْنُ يَحْيَى، أَخْبَرَنَا هُشَيْمٌ، عَنْ يُونُسَ، عَنِ ابْنِ سِيرِينَ، عَنْ أَنَسِ، بْنِ مَالِكٍ قَالَ نُهِينَا أَنْ يَبِيعَ، حَاضِرٌ لِبَادٍ . وَإِنْ كَانَ أَخَاهُ أَوْ أَبَاهُ .
Classification
Sahih (Authentic)
References
Sahih Muslim 1523a
Sahih Muslim Vol. 4, Book of Transactions, Hadith 3632