وَلَمْ يُمْكِنْ سُؤَالُهُ، إِذَا كَانَ الْعَالِمُ مَاشِيًا بَيْنَ الصَّفَا وَالْمَرْوَةِ
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.