Al-Muminoon 23:60

and those who do whatever [good] they do with their hearts fearful[27], knowing that they will return to their Lord –

[27] That their deeds may not be acceptable.

And they who give what they give while their hearts are fearful[962] because they will be returning to their Lord -

[962] Lest their deeds not be acceptable.

60. And those who give that (their charity) which they give (and also do other good deeds) with their hearts full of fear (whether their alms and charities have been accepted or not),[3] because they are sure to return to their Lord (for reckoning).

[3] (V.23:60) Narrated ‘Âishah رضي الله عنها (the wife of the Prophet صلى الله عليه وسلم), I asked Allâh’s Messenger صلى الله عليه وسلم about this (following Verse): "And those who give that (their charity) which they give (and also do other good deeds) with their hearts full of fear ..." (V.23:60).
She added: "Are these who drink alcoholic drinks and steal?" Allâh’s Messenger صلى الله عليه وسلم replied: "No! O the daughter of As-Siddîq, but they are those who fast, pray, and practise charity and they are afraid that (their good) deeds may not be accepted (by Allâh) from them. ‘It is these who hasten in good deeds.’ " (Sunan At-Tirmidhi Hadith No.3225), (Tafsîr Al-Qurtubî).

And those who give that which they give with hearts afraid because they are about to return unto their Lord,