Q. A man cannot pass water over his body due to his medical condition. He is paralyzed on one side of his body and cannot use his one hand. What can he do for wudhu to perform Salaah?
A. In the enquired case, if the usage of water is extremely detrimental to him due to his medical condition, then it is permissible for him to make Tayammmum (Dry Ablution) and perform Salaah.
If it is not possible for him to make Tayammum using his own hand/s due to paralysis, then someone else may assist him using their own hands to make Tayammum on his body.
In that case, the man paralyzed will make the intention of Tayammum and the one performing Tayammum for him will strike both hands on an earthly substance (sand, stone etc.), rub them on his face, then strike both hands on an earthly substance again and rub both hands up to and including his elbows.
In doing so, the performance of Tayammum replaces the performance of Wudhu and the Salaah performed with it will be valid. (Hindiyyah 1/26)
Allah Ta’ala Knows Best
Mufti Ismaeel Bassa