Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
Qurʾān Bukhārī Muslim Nasāʾī Abū Dāwūd Tirmidhī Ibn Mājah Mālik Aḥmad Dārimī Ḥākim Ibn Ḥibbān Ṭabarānī Nasāʾī's Kubrá Bayhaqī al-Luʾluʾ wa-al-Marjān Ibn Rajab's Fifty Riyāḍ al-Ṣāliḥīn Aḥmad's Zuhd Suyūṭī
quran:23:60 –

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

and who give what they give, of voluntary alms and righteous deeds, while their hearts tremble ˹with awe˺, fearful lest it not be accepted from them, because (the particle lām, ‘for’, is taken as implied before annahum, ‘that they’) they are going to return to their Lord —
القرآن:٢٣:٦٠ –

وَالَّذِينَ يُؤْتُونَ مَا آتَوْا وَقُلُوبُهُمْ وَجِلَةٌ أَنَّهُمْ إِلَىٰ رَبِّهِمْ رَاجِعُونَ  

{والذين يؤتون} يعطون {ما آتوْا} أعطوا من الصدقة والأعمال الصالحة {وقلوبهم وجلة} خائفة أن لا تقبل منهم {أنهم} يقدر قبله لام الجر {إلى ربهم راجعون}.