Asalamualaikum
. I am an ignorant person, someone asked me why do we not read the Dua straight away after the Fard of Fajr and Asr as we do after the Fard of Zohar, Magrib and Esha. I could not give him an explanation. Please furnish me with an answer.
First, know that the Du'aa after any Fardh is Mustahab. There is no sin if left out.The proven Tasbeeh after Fajr and Asr is called 'Tasbeeh-e-Gurbah'. Therefore it is good to recite and then to make the Du'aa.