Dua after Athaan

Q: Is it sunnat to raise the hands and make dua after athaan?

A: Despite researching many books on hadith, we have failed to come up with even a weak hadith that mentioned raising of hands in dua after athaan. It is established that Rasoolullah (sallallahu alayhi wasallam) read the dua after athaan and taught it to the Sahaaba, but nothing indicates that lifted his hands when reading it, or that he ordered the Sahaaba to do so. This practice is, therefore, not a sunnah. For a practice to be designated as sunnah, it must be found in the famous books of hadith