If a person does saaâi on the second floor or on the roof (of the Masâaa), does he have to go around the dome of as-Safa and the dome of al-Marwah, or is that not essential, because we see overcrowding when going around them?.
Praise be to Allaah.
Going around the dome of as-Safa or al-Mawrah is not essential, because what is required is to go all the way to the end of the passageway for wheelchairs, and the passageway for wheelchairs ends a long way from the places where they go round. End quote.
Reproduced from Islam QA