Zikr & Dua

Dua after Salaah

Q: I want to ask some questions regarding prayers after namaz:

  1. Is there any proof that Nabi (Sallallahu Alayhi Wasallam) did dua with raising hands right after the Faraz Namaz individually? If yes then please tell some reference
  2. Is there any proof that Nabi (Sallallahu Alayhi Wasallam) did dua with raising hands right after the Faraz Namaz along with Sabahas Collectively? if yes then please tell some reference
  3. Is there any proof that Nabi (Sallallahu Alayhi Wasallam) did dua with raising hands right after the Faraz Namaz  along with Sabahas Collectively and Nabi (Sallallahu Alayhi Wasallam) did dua loudly and sahabas said ameen only as usualy we follow this practise in hanafis mosques these days? if yes then please tell some reference 

Dua after Salaah

Q: In Bahishti Zewar it states:

6. On completing the salaat, both the hands should be raised up to the chest and dua to Allah Ta'ala should be made for oneself. And if he is an imam, he should make dua for all those following him as well. On completing the dua, both hands should be passed over the face. The muqtadis could make their individual duas or, if they can hear the dua of the imam, they could say aameen to it.