وَمِنْ شَرَائِطِهَا: الْخُطْبَةُ قَبْلَ الصَّلَاةِ، يَخْطُبُ الْإِمَامُ خُطْبَتَيْنِ، يَفْصِلُ بَيْنَهُمَا بِقَعْدَةٍ، وَيَخْطُبُ قَائِمًا عَلَى الطَّهَارَةِ.
Translation: A sermon before the prayer is a condition. The imam delivers two sermons, separates them with a sitting, and speaks standing in a state of purity.
The prior sermon is a condition, not an optional preface. The two-sermon format, sitting between them, standing and purity describe its proper form; their precise legal ranks are distinguished below.