Charity on every phalanx

The Messenger of Allah (sallallaahu alayhi wa sallam) said:

Charity is due, every day, on every phalanx of the son of Adam.
Two Rak'ah of al-Duhaa prayer suffice for all of that.

عن ابن عباس : قال رسول الله ﷺ

على كُلِّ سُلَامَى مِنِ ابنِ آدمَ في كلِّ يومٍ صدقةٌ
و يُجْزِي عن ذلِكَ كلِّهِ ركعتا الضحَى

صححه اﻷلباني
 

Sheikh al-albaani has graded this Hadith authentic