The famous Muhaddith Imaam Sha’abi Rahmatullah alaihe has said
that unless a rich person considers himselfmore in need of reward from Allah for his Sadaqah than he thinks the poor person to be in need of his Sadaqah, he
has wasted his alms, which would be thrown back on him.
(Ihya-ul-Uloom).
The Day of Judgement shall be a day of great severity, sorrow and terror, as would be explained at the end of this book. To be safe from these calamities on that day would be a great privilege.