Charity for the Poor
Interpreters have said that if one sees themselves as poor and giving voluntary charity, they might perform physical acts of worship such as prayer, pilgrimage, circumambulation, or glorification of God. If they are wealthy, this is interpreted as doing good deeds for people, such as enjoining good, forbidding evil, or teaching knowledge or the Quran. It is also said that giving charity in dirhams and dinars may bring reward to both the giver and the recipients.
Per Ibn Sirin's Muntakhab al-Kalam fi Tafsir al-Ahlam