I asked lots of scholars about the Hadith:
“If one fulfills one need of a muslim Allah Taa’la will give him seventy three favours. One is sufficient for all the needs in this world and seventy two will be used to raise his stages in the hereafter”
These people said they never read such a Hadith. Please let me know if you find it and what is its status? May Allah Ta’ala reward you abundantly, Amin.