«وَالرَّبْطُ دُونَ الشَّرْطِ»
A connection can occur without the full force of a strict condition.
Relating two pieces of meaning and making one event depend absolutely on another's occurrence are not always the same. Some constructions with in foreground an existing circumstance, make a concession, or connect ideas rather than establish a new causal dependence.
Example: «زَيْدٌ وَإِنْ كَثُرَ مَالُهُ بَخِيلٌ» — Zayd is miserly even if his wealth is abundant. Wealth is conceded as a contrary consideration, not posited as the cause of miserliness.