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

تَصَدَّقُوا مِن غَيرِ مَخِيلَةٍ؛ فإنَّ المَخِيلَةَ تُبطِلُ الأجرَ.

‘Give in charity without conceitedness, for verily conceitedness does away with your reward [for it].’

Source: Tanbih al-Khawatir, v. 2, p. 120