3-            To stand (qiyam) for the obligatory prayer, when able. If unable, one prays sitting. If unable, one prays lying one one’s side. If unable, one prays lying on one’s back.

4-            To recite the Fatihah, including:

بِسْمِ اللهِ الرَّحْمنِ الرَّحِيم

Bismillahir-Rahmanir-Rahim.

Also, doubling the letters that must be doubled, in order and succession without lengthy interruption, articulating its letters properly, and avoiding the error which breaches the meaning, such as saying (an^amtu) instead of (an^amta). It is prohibited to commit an error that does not breach the meaning. However, it does not invalidate the prayer [unless done intentionally].