And will you tell us, what Prophet pbuh prayed was Tahajjud then why Tahajjud is not permissible except only in Ramadan according to this Hadith of AlKafi
Abu Abdillah -AS - said: The Prophet would increase his Salaat during Ramadan **after he prays ishaa so people will stand behind him to pray .......he added: do not pray after ishaa except in the month of Ramadan [Al-Kafi: 4/154]**
Tahajjud is a prayer mentioned in Quran. You cannot conclude that since you can refer to Quran.
In Jafari fiqh, we are clear about the priority Quran has over everything else and our Imam (AS) has clearly stated that every ayat should be weighed against quran and thrown to the wall if found in contradiction.
Unfortunately in Ahl-e-Sunnat Hadith has acquired the status of Talmud and though you will disagree with me, it is a ground reality that i have faced in a lot of face to face discussions with brothers from Hanafiq Fiqh. Please start a separate discussion thread if you want to debate on this issue.