And if people need to ask him religious questions, and it is not possible due to his walking on foot, then because of such a crowd, the scholar can perform Sa'i between Safa and Marwah while riding.

Sayyiduna Jabir bin Abdullah (may Allah be pleased with both of them) narrates that the Noble Prophet (peace and blessings be upon him) performed the Tawaf of the Sacred House and the Sa’i between Safa and Marwah during the Farewell Pilgrimage while riding, so that people could see him. Because the people had surrounded him from all sides. In the narration of Abdul Rahman and Ibn Ma’mar, there is this addition: so that people could ask you religious questions, because (while walking) the people had surrounded you.