بسم الله الرحمن الرحيم
“Our Lord, accept [this] from us. Indeed You are the Hearing, the Knowing.”
RABBANA TAQABBAL MINNA INNAKA ANTAS-SAMI-UL- ALIM.
(Surah Al Baqarah 2:127)
This dua was read by Ibrahim (as) and Ismail (as) when they completed the building of the Ka’bah.
This teaches us that a person must not be satisfied with actions only. Rather, after the action, be humble and beg Allah to accept it. This is taught from the action of Ibrahim (as). After completing such a lofty action he does not express pride, rather he asks Allah to accept the action.