أَلَمْ نَشْرَحْ لَكَ صَدْرَكَ
Have We not expanded your breast for you?
Ash-Sharh 94:1 opens with a-lam recalling a favor, resembling the a-lam of Ad-Duḥā 93:6. The shared interrogative style supports a thematic relation of remembered help and reassurance.
The observation does not erase the separate identity of the two surahs or prove that every detail in them has an identical function.