Ibn ‘Umar narrated that the Messenger of Allah صلی اللہ علیہ وآلہ وسلم used to dismount at Dhu Tuwa and stay there overnight until he prayed ubh when he was approaching Makkah. The place where the Messenger of Allah صلی اللہ علیہ وآلہ وسلم prayed was on top of the big hillock and not in the Masjid that was built later on, but it was lower than that, on top of the big hillock. (Sahih)