the ablution thoroughly, then face the qiblah and say the takbir.” (1)
One who rises to pray will stand during the prayer, and because this is the natural order of the prayer: one begins by standing and then says the takbir. If you were to say the opening takbir while not standing, your prayer would not be valid if it were an obligatory prayer.
If someone were to ask: How can you regard standing as a pillar when the Prophet, peace and blessings be upon him, said, “The prayer of one who is seated is half that of one who is standing”? (2) This indicates that there is reward in the prayer of one who is seated; yet if standing were a pillar, there would be no reward for omitting it.
The answer is that prayers are either obligatory or voluntary. Thus, the hadith giving preference to the prayer of one standing over that of one seated is understood to refer to voluntary prayer, as indicated by the hadith of Imran. It is therefore said that standing is not a pillar in voluntary prayer; rather, it is a sunnah act. This is further supported by the Prophet’s practice: while travelling, he would perform voluntary prayers on his mount. (3) Had standing been a pillar of such prayers, he would not have prayed on his mount; rather, he would have dismounted and prayed on the ground. This is why he did not perform obligatory prayers upon it: were he to perform an obligatory prayer on it, the pillar of standing would be missed.
Issue: Standing is obligatory even when one is supported. If someone were to say: “If I were to