وَلَا خِيَارَ لِوَاحِدٍ مِنْهُمَا إِلَّا مِنْ عَيْبٍ أَوْ عَدَمِ رُؤْيَةٍ.
Translation: Neither has an option merely because the session continues, except for an option arising from defect or lack of prior inspection.
The passage immediately names two exceptions to the default binding rule: an option due to defect and an option due to lack of inspection.
These are not a claim that other contractually or legally recognized options can never arise. Later chapters explain further options under their own conditions.