اللَّهُ أَكْبَرُ
Allahu Akbar (said with each pebble thrown)
Allah is the Greatest. (Said with each of the seven pebbles thrown at the Jamarat.)
The stoning of the Jamarat (pillars) commemorates Prophet Ibrahim (AS) throwing stones at Shaytan, who appeared to him three times trying to dissuade him from obeying Allah's command to sacrifice his son. Each pebble is thrown with Allahu Akbar — affirming Allah's greatness over every temptation.
Related Du'as
وَاتَّخِذُوا مِن مَّقَامِ إِبْرَاهِيمَ مُصَلًّى
And take the standing place of Ibrahim as a place of prayer. (Recite this, then pray two rak'ahs behind Maqam Ibrahim after Tawaf.)
Sahihلَبَّيْكَ اللَّهُمَّ لَبَّيْكَ، لَبَّيْكَ لَا شَرِيكَ لَكَ لَبَّيْكَ، إِنَّ الْحَمْدَ وَالنِّعْمَةَ لَكَ وَالْمُلْكَ لَا شَرِيكَ لَكَ
Here I am, O Allah, here I am. Here I am, You have no partner, here I am. Indeed, all praise, blessings, and dominion are Yours. You have no partner.
Sahihبِسْمِ اللَّهِ وَاللَّهُ أَكْبَرُ
In the Name of Allah, Allah is the Greatest.
Hasanإِنَّ الصَّفَا وَالْمَرْوَةَ مِنْ شَعَائِرِ اللَّهِ ۖ أَبْدَأُ بِمَا بَدَأَ اللَّهُ بِهِ
Indeed, Safa and Marwa are among the symbols of Allah. I begin with what Allah began with.
Sahih