The issue of one who is able to stand for only part of the prayer: Is there a report from the Messenger?

The questioner : The sick person who was able to stand after the bowing, what is the ruling? I mean, he can bear it after the bowing, O Shaykh. He was with the Prophet (peace and blessings be upon him) in the night prayer. This night prayer, O Shaykh, is a voluntary prayer, not an obligation.

The Shaykh : No, the default is that what is established in a voluntary prayer is established in an obligatory prayer, unless there is evidence to the contrary. In any case, I told you that this issue requires looking into the scholars' statements. I say it is necessary to look into the scholars' statements.

The presenter : Yes, please go ahead.

The Shaykh : We will look into it, if Allah wills.