When throwing each pebble at the Jamarat

يُكَبِّرُ كُلَّمَا رَمَى بِحَصَاةٍ عِنْدَ الْجِمَارِ الثَّلَاثِ، ثُمَّ يَتَقَدَّمُ، وَيَقِفُ يَدْعُو مُسْتَقْبِلَ الْقِبْلَةِ، رَافِعًا يَدَيْهِ بَعْدَ الْجَمْرَةِ الْأُولَى وَالثَّانِيَةِ، أَمَّا جَمْرَةُ الْعَقَبَةِ فَيَرْمِيهَا وَيُكَبِّرُ عِنْدَ كُلِّ حَصَاةٍ، وَيَنْصَرِفُ وَلَا يَقِفُ عِنْدَهَا⁽¹⁾.

i.e. Stoning the three areas at Mina during Hajj. Every time the Prophet (Peace Be Upon Him) threw a pebble at any of the three jamarat, he would say: Allahu akbar.
‘Allah is the greatest’ …on completion of the first jamarah, he advanced a little, stood facing the qiblah, raised his hands and supplicated. He also did this after the second jamarah but not the third.