Is it permissible to perform prayer while lying down (mustalqiyan) due to illness?

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It is permissible to perform prayer while lying down if medical experts advise it for treatment. This is the view held by Al-Qadi, in قياس (analogy) with the established madhab, and supported by Jabir ibn Zayd, Al-Thawri, and Abu Hanifa. The justification rests on the precedent set by the Prophet, peace be upon him, who prayed sitting when his right side was wounded, indicating permissibility when there is hardship or fear of harm. Furthermore, dispensation is granted for foregoing Wudu (ablution) to protect wealth, and foregoing fasting due to illness, and reports indicate permission to pray on a mount due to fear of mud damage, and to omit Jumu'ah and congregational prayers for self-preservation from mud, and to follow an Imam praying seated, or to pray on one's side or while lying down during times of fear of the enemy. The perceived harm of losing sight does not lessen the validity of these established permissions.