Jabir (RA) reported that Allah's Messenger (ﷺ) circumambulated the House on the back of his riding camel on the occasion of the Farewell Pilgrimage and touched the Stone with his stick so that the people should see him, and he should be conspicuous, and they should be able to ask him (questions pertaining to religion) as the people had crowded round him.
Jabir bin 'Abdullah (RA) reported that Allah's Apostle (ﷺ) circumambulated the House (and ran) between al-Safa and al-Marwah on the back of his she-camel, at the occasion of the Farewell Pilgrimage so that the people should see him and he should be conspicuous, and they should be able to ask him (questions pertaining to religion), and the people had crowded round him. In the hadith transmitted on the authority of Ibn Khashram no mention is made of: "So that they should ask him."
´Abu Az-Zubair narrated that he heard Jabir bin Abdullah say:` During the Farewell Pilgrimage the Prophet circumambulated the House and went between As-Safa and Al-Marwah on his mount so that the people could see him and he could see them, and they could ask him questions, and the people crowded around him.
Hafiz Muhammad Ameen
From this it is understood that, in case of necessity, circumambulation (tawaf) may be performed on a mount instead of on foot. For example, elderly and sick individuals. Similarly, a mount may be used for educational purposes and the like.
Source: Sunan Nasa'i: Translation and Benefits by Shaykh Hafiz Muhammad Amin Hafizullah, Page: 2978
´Jabir narrated that:` the Messenger of Allah came down from As-Safa until he reached level round in the valley, then he hastened (Ramel) until (the ground) rouse, then he walked.
Hafiz Muhammad Ameen
For benefits, see Hadith: 2984.
Source: Sunan Nasa'i: Translation and Benefits by Shaykh Hafiz Muhammad Amin Hafizullah, Page: 2986