And likewise, they have legislated the closing of our witr *** with the recitation of the two surahs to conclude the night's effort with the adhan (Explanation of the third place where it is recommended to recite the two surahs)

The Shaykh :"And likewise, they have legislated the closing of our witr *** with the recitation of the two surahs to conclude the night's effort with the adhan"
To conclude the night's effort, meaning: for the night's prayer, based on the saying of the Prophet (peace and blessings be upon him): .
So, you conclude the day's prayer, the Maghrib prayer, with the recommended practice of Maghrib by reciting them, and you begin the day with the recommended practice of Fajr by reciting them, and you conclude the night with the witr, reciting in the second rak'ah: , and in the third: , yes.