Every morning, two angels descend. One of them says: 'O Allah, give the one who spends (in the way of Allah) compensation.' The other one says: 'O Allah, give the one who withholds (from spending in the way of Allah) damage. [Sahih/Authentic] - [Al-Bukhari and Muslim
"«ما مِنْ يومٍ يُصْبِحُ العِبادُ فيهِ إلا مَلَكَانِ يَنْزِلَانِ، فيقولُ أَحَدُهُمَا: اللهُمَّ أَعْطِ مُنْفِقًا خَلَفًا، ويقولُ الآخَرُ: اللهُمَّ أَعْطِ مُمْسِكًا تَلَفًا». [صحيح.] - [متفق عليه.]"