Final answer:
Every Sikh is expected to contribute one-tenth of their income, known as Daswandh, for religious and charitable purposes.
Step-by-step explanation:
The Sikh community is expected to contribute a portion of their income for religious and philanthropic purposes, known as Daswandh. This is a Sikh practice established by Guru Amar Das, the third of the ten Sikh Gurus. The amount to be given is one-tenth of one's income. Sikhism encourages its followers to support the community and charitable causes through this practice, emphasizing the importance of sharing and generosity.