فَأَمَّا الْيَتِيمَ فَلَا تَقْهَرْ
So do not oppress the orphan.
Verses may connect by reasoning, consequence, contrast, emphasis through repetition, or summary followed by explanation.
In Ad-Duḥā 93:6 the Prophet’s earlier condition of being an orphan and receiving shelter is recalled; 93:9 then prohibits mistreating orphans. The transition from receiving care to exercising care is a grounded contextual connection.