Is there a reward for fasting the first nine days of Dhul-Hijjah and observing voluntary night prayers during them that is equal to the reward of Laylat al-Qadr, and is its daytime better than the daytime of Ramadan, and what is the evidence for that?

The scholars recommended fasting the first nine days of Dhul-Hijjah based on the hadith of Hafsa (may Allah be pleased with her), which some scholars deemed weak. However, it is permissible to use it as evidence because it pertains to the virtues of deeds, and it has a sound supporting hadith. Similarly, a weak hadith narrated by At-Tirmidhi and Ibn Majah mentions the virtue of performing Qiyam (night prayer) during these nights. Generally, Qiyam is included in the virtue of righteous deeds during these days. Scholars have stated that the first ten days of Dhul-Hijjah are superior during their days, and the last ten days of Ramadan are superior during their nights.