What dhikr is مستحب during الحج?

Dhikr (remembrance of Allah) is the spiritual essence of الحج, transforming physical actions into acts of deep worship. The most important dhikr during الحج is the التلبية: 'Labbayk Allahumma labbayk, labbayk la sharika laka labbayk, innal hamda wan-ni'mata laka wal-mulk, la sharika lak.' This should be recited frequently and aloud (for men) from the moment of entering الإحرام until the stoning of الجمرات al-Aqaba on the 10th.

At عرفة, النبي (صلى الله عليه وسلم) said: 'The best دعاء is on the Day of عرفة, and the best thing that I and the prophets before me said is: La ilaha illa Allahu wahdahu la sharika lah, lahul mulku wa lahul hamdu wa huwa ala kulli shay'in qadir.' During the days of التشريق (11th-13th), the takbirat of التشريق are prescribed: 'Allahu Akbar, Allahu Akbar, la ilaha illa Allah, Allahu Akbar, Allahu Akbar, wa lillahil hamd.' During الطواف, there is no specific prescribed dhikr — scholars advise making personal دعاء, reciting القرآن, or any dhikr that moves your heart. Between the Yemeni corner and the الحجر الأسود, the سنة دعاء is: 'Rabbana atina fid-dunya hasanah wa fil-akhirati hasanah waqina adhab al-nar.'