Hawzah News Agency – The merciful prophet of Islam (pbuh) says:

إنَّكُم لَن تَسَعُوا النّاسَ بأموالِكُم، فالْقُوهُم بِطَلاقةِ الوَجهِ وحُسْنِ البِشرِ.

'You will not be able to encompass all people with your money, so meet them with cheerful faces and joy.'

Source: al-Kafi, v. 2, p. 103, no. 1