They were in the bowing position during the dawn prayer.
حدثنا هناد حدثنا وكيع عن سفيان عن عبد الله بن دينار
كانوا ركوعا في صلاة الفجر
No references are available.
Agreed upon [by Bukhari and Muslim]. Muslim narrated it in the Book of Hajj, Chapter on the Explanation that Sai between Safa and Marwa is a Pillar without Which Hajj Is Not Valid, hadith no. 1277, from Muhammad bin Abu Umar. Bukhari narrated it, hadith no. 4861, through the hadith of Sufyan bin Uyaynah, with the same wording.