Support Needy People
A guaranteed recurrent reward based on good works or acts that keep providing is known as sadaqah jariyah, which is Arabic for "continuous charity." In Arabic, the words for "charity" and "ongoing" are combined to form the word sadaqah.
One of the three good deeds that will go with you to the grave is sadaqah jariah, and its benefits will last long after we are gone. As a result, donations to the Sadaqah Jariyah can also be donated in someone's honour so that they continue to benefit from it in the Hereafter.