فَسَنُيَسِّرُهُۥ لِلْعُسْرَىٰ
Sentence structure
The result clause mirrors ayah 7: فَ introduces the result, سَ the future, نُيَسِّرُ is Form II, and هُۥ its object.
Ayah summary
We will steadily lead him along the path to a difficult end.
فَسَنُيَسِّرُهُۥ — Then We shall ease him
Grammar: فَ marks result, سَ future; نُيَسِّرُ is Form II first-person-plural imperfect and هُۥ its object. Its subject is the hidden pronoun «نَحْنُ».
لِلْعُسْرَىٰ — towards hardship
Grammar: لِ is a preposition; the defined feminine noun is genitive in position. This phrase is linked to «نُيَسِّرُهُۥ».