Relaxation (Hadith No. 453)
Narrated Um Salama:
I complained to Allah’s Apostle that I was sick. He told me to perform the Tawaf behind the people while riding. So I did so and Allah’s Apostle was praying beside the Ka’ba and reciting the Surah starting with “Wat-tur-wa-Kitabin mastur.”
You’ll always find relaxation in Islam’s teachings. If someone’s not capable of doing something, they won’t be forced. For example, if you’re sick/travelling, you may skip the mandatory fast(s) of Ramadan. The reason behind giving relaxation is to enable everyone to follow Islam, whether they’re rich or poor, healthy or sick, young or old. BUT that does not mean we start finding ways to somehow not perform our obligations (called heela). That mandatory fast you skipped in Ramadan while travelling, you gotta compensate for it later (as in, keep it after Ramadan). Mhmm.
Islam is for everyone. Enough said.
P.S. this Hadith also shows that sick people can do Tawaf sitting on a camel (vehicle). So yes, they have jawaz for using wheelchairs in Haram of Makkah these days.