Sadaqah Jariyah is not just charity, it is an ongoing investment in good that continues to grow over time.
The Qur’an describes charity as something that multiplies far beyond what we give:
This verse establishes a key principle: charity is not reduced when given, it grows, multiplies, and continues benefiting others. The greater and longer the impact, the greater the multiplication.

(Qur’an 2:261)