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:38:54 –

Indeed, this is Our provision; for it there is no depletion.  

This is indeed Our provision, which will never be exhausted’, in other words, one which will never cease (this ˹last˺ sentence ˹mā lahu min nafādin˺ is a circumstantial qualifier referring to rizqunā, ‘Our provision’; or it is a second predicate of inna, ‘indeed’, meaning that it will be ‘everlasting’).
القرآن:٣٨:٥٤ –

إِنَّ هَٰذَا لَرِزْقُنَا مَا لَهُ مِنْ نَفَادٍ  

{إن هذا لرزقنا ما له من نفاد} أي انقطاع والجملة حال من رزقنا أو خبر ثان لإن، أي دائما أو دائم.