Hawzah News Agency – The merciful prophet of Islam, peace be upon him and his household says:

تَهادَوا تَحابُّوا، تَهادُوا فإنَّها تَذهَبُ بِالضَّغائن.

'Give gifts to each other and you will love each other; give gifts to each other for it removes grudges.'

Source: al-kafi, v. 5, p. 144, no. 14