the Messenger of Allah prayed Zuhr in Al-Baida then he rode up the mountain of Al-Baida; and began the Talbiyah for Hajj and 'Umrah, when he had prayed Zuhr (Daif) (Using translation from Nasāʾī 2662)
أَنَّ رَسُولَ اللهِ ﷺ «صَلَّى الظُّهْرَ بِالْبَيْدَاءِ ثُمَّ رَكِبَ وَصَعِدَ جَبَلَ الْبَيْدَاءِ وَأَهَلَّ بِالْحَجِّ وَالْعُمْرَةِ حِينَ صَلَّى الظُّهْرَ»