بُلُوغُ الْمَرَامِ
Bulugh al-Maram 936
Business Transactions
وَعَنْ أَنَسٍ - رضى الله عنه - قَالَ : قَالَ رَسُولُ اَللَّهِ - صلى الله عليه وسلم -{ تَهَادَوْا , فَإِنَّ اَلْهَدِيَّةَ تَسُلُّ اَلسَّخِيمَةَ } رَوَاهُ اَلْبَزَّارُ بِإِسْنَادٍ ضَعِيف ٍ [1] .
Narrated Anas (RA): Allah's Messenger (ﷺ) said: "Give gifts to one another, for (giving) gifts gently extracts resentment and ill-will." [al-Bazzar reported it through a Da'if (weak) chain of narrators].
Sunnah.com reference: Book 7, Hadith 197