Posted on 07/06/2012 by __socrates

Wikis > Dictionary of Islam > Salatu'l-Mariz

SALATU ‘L-MARIZ. صلاة المريض
“Prayer of the sick.” When a person is too sick to stand up in the usual prayers, is allowed to recite them either in a reclining or sitting posture, provided he performs the usual ablutions. It is ruled that he shall in such a case make the prostrations & mentally. (Raddu ‘l Muhtar. vol i. p. 891.)

Based on Hughes, Dictionary of Islam