The Prophet ﷺ said, "Exchange gifts and you will love one another."
عن النبي ﷺ قال: تهادوا تحابوا.
No references are available.
Bukhari related it in Adab al-Mufrad (594), Dulabi in Kuna (1/150), and Bayhaqi (6/169), all of them through the route of Dimam bin Ismail, from Musa bin Wardan, from Abu Hurairah, who mentioned it.Its chain is hasan because of Dimam bin Ismail Muradi, for his hadith is hasan. Abu Hatim said, "He was truthful." Nasai said, "There is no harm in him." Musa bin Wardan is disputed, but his hadith is hasan.