Dua is Accepted and Answered of the one who praises Allah and Send Darood Shareef (Blessings) upon the Prophet (sallAllahu alayhi wasalam)

 Dua after praising Allah and giving salat  o­n the Prophet (SALLALLAHU alayhi wasalam) in the tashahhud at the end of salat.

Narrated Faddalah ibn Ubayd (radiAllahu anhu): that the Messenger of Allah (salAllahu alayhi wasalam) said: ‘When anyone of you makes du’a, let him start by glorifying his Lord and praising Him, then let him send blessings upon the Prophet (salAllahu alayhi wasalam), then let him pray for whatever he wants’ [abu Dawud #1481, at-Tirmidhi #3477]

In another hadith; Baqiy ibn Mukhallid (radiAllahu anhu) narrated that that the Messenger of Allah (salAllahu alayhi wasalam) said: ‘Every du’a is not responded to until o­ne sends blessings upon the Prophet (salAllahu alayhi wasalam)’ [al-Bayhaqi]

In another hadith; Umar (radiAllahu anhu) narrated that the Prophet (salAllahu alayhi wasalam) said: ‘Du’a is detained between the heavens and the earth and no part of it is taken up until you send blessings upon your Prophet (salAllahu alayhi wasalam)’
[at-Tirmidhi #486]

After a person has finished his tashahhud and before saying the ’salam’, supplication at this time is o­ne likely to be responded to. Ibn Mas’ud narrates: I was o­nce praying, and the Prophet (salAllahu alayhi wasalam), Abu Bakr and Umar (were all present). When I sat down (in the final tashahhud), I praised Allah, then sent salams o­n the Prophet, then started praying for myself. At this, the Prophet (salAllahu alayhi wasalam) said:‘Ask, and you shall be given it! Ask, and you shall be given it!’ [at-Tirmidhi #593 - hasan, Mishkat al-Misbah #931]