Hasanaat of these ten golden days with Pearl of the day..
- Telling others to do Hasanaat
If we fast only one day during the first ten days of Dhul-Hijjah even then, we can get the reward of one thousand days by telling people the importance of these days. If we complete one khatmah of Qur'an Al-Majestic even then, we can gain the reward of tens and tens by telling others about these days. The more we do effort in telling others; the greater our reward will be.
The Prophet وَسُلَمَ عًليهِ اللَّه صْلى said, "The one who guides to goodness shall have the same reward as the one who does it."
(Related by Ibn-Habban and ranked as hadith sahih by al-Albani)