Forgetting to recite sunnah qiraat in salaah
Q:
1. Before starting witr, I made an intention in my mind that I will recite the surahs which are sunnah to recite in witr. Then I said softly that I make niyyah to pray 3 rakat witr, but I did not say anything about which surah I will recite. During the prayer, I forgot to recite the sunnah surahs in the first two rakahs. Then I thought that I will do sajdah sahw, but I forgot to do that too. Is my witr valid?
2. Is sajdah sahw waajib if someone intends to recite a specific surah and then forgets to recite it?