Du'aa after good deeds

It was narrated from 'Abdullah bin 'Amr that the Messenger of Allah (sallallaahu alayhi wa sallam) said:

"When Sulaiman bin Dawud finished building Bait al-Maqdis, he asked Allah for three things. He asked Him that his judgement that was in harmony with His judgment, and he was given that.

And he asked Allah for a dominion that no one after him would have, and he was given that.

And when he finished building the Masjid he asked Allah, the Mighty and Sublime, that no one should come to it, intending only to pray there, but he would emerge free of sin as the day his mother bore him."

[Sunan al-Nasaai'i Hadith No. 693]

In this hadith is evidence for making du'aa after doing good deeds because they act as a wasiilah for the du'aa being accepted. Tawassul with good deeds is a means for du'aa to be accepted.