Sayyiduna Ibn Abbas (may Allah be pleased with them both) said concerning the saying of Allah, the Mighty and Majestic, "Those who spend their wealth by night and by day, secretly and openly" [Al-Baqarah: 274]: "It was revealed concerning Ali bin Abi Talib (may Allah be pleased with him). He had four dirhams, and he spent one by night, one by day, one secretly and one openly."
Hadith Referenceالمعجم الكبير للطبراني / باب العين / 11118