The First Ten Days of Dhul-Hijjah

Days of Virtue and Righteous Deeds
Source : 

Allahu Akbar (Allah is the Greatest), Allahu Akbar, Allahu Akbar

La Ilaha Illallah (There is no true God except Allah)  

Allahu Akbar, Allahu Akbar, Alhamdulillah (All praise is due to Allah)

Ibn Abbas narrated that:

Prophet Mohammed (Peace and blessings be upon him) said: “There are no days in which righteous deeds are more beloved to Allah than those ten days.” They said: “O Messenger of Allah! Not even Jihad in Allah Cause? The Messenger of Allah said: “Not even Jihad in Allah’s Cause unless a man were to out with his self and his wealth and not return from that with anything.” {In a version by Al-Bukhari}

May Allah accept your pilgrimage and forgive your sins.