Virtues

Receiving the rewards of reciting the daily surahs when recited in nafl salaah

Q: Will we get the respective rewards and benefits of reciting Surah Waaqiah, Surah Mulk and Surah Sajdah if we recite these surahs in nafl salaah (Tahajjud) at night or do we have to recite these surahs before sleeping without being in the state of salaah? Similarly, by reciting Surah Yaseen in Ishraaq salaah, do we get the rewards and benefits of reciting it in the morning as mentioned in the ahaadith.