Sunan an-Nasa'i, Book 44, Hadith 13 (In-Book) ⓘ
It was narrated from Abu Hurairah that the Prophet said: "Taking oaths may help you to make a sale but it takes (blessing) away from the earnings "(Sahih )
أَخْبَرَنَا أَحْمَدُ بْنُ عَمْرِو بْنِ السَّرْحِ، قَالَ حَدَّثَنَا ابْنُ وَهْبٍ، عَنْ يُونُسَ، عَنِ ابْنِ شِهَابٍ، عَنْ سَعِيدِ بْنِ الْمُسَيَّبِ، عَنْ أَبِي هُرَيْرَةَ، عَنِ النَّبِيِّ صلى الله عليه وسلم قَالَ " الْحَلِفُ مَنْفَقَةٌ لِلسِّلْعَةِ مَمْحَقَةٌ لِلْكَسْبِ " .
also referenced under: Hadith 4461 (Reference) & Volume 5, Book 44, Hadith 4466 (DarusSalam)