Surah At-Tawbah 9:121

وَلَا يُنفِقُونَ نَفَقَةً صَغِيرَةً وَلَا كَبِيرَةً وَلَا يَقْطَعُونَ وَادِيًا إِلَّا كُتِبَ لَهُمْ لِيَجْزِيَهُمُ ٱللَّهُ أَحْسَنَ مَا كَانُوا۟ يَعْمَلُونَ

Nor do they spend an expenditure, small or large, or cross a valley but that it is registered for them that Allāh may reward them for the best of what they were doing.

Translation: Saheeh International

Tafsir

Nor expend they therein in the way of God any sum small even if it be a single date or great nor do they cross a valley during a campaign march but it is recorded for them as a righteous deed that God may reward them the best of what they used to do that is the due reward thereof.

Excerpt from Tafsir al-Jalalayn, commentary on 9:121, via Quran.com. The reader has the full commentary and 9 more tafsirs.