«فَحِينَ مَلَلْنَا السُّرَى وَمِلْنَا إِلَى الْكَرَى»
When we grew weary of night travel and inclined toward sleep.
Malalnā and milnā differ in root and meaning while echoing each other; surā and karā likewise pair night travel and sleep. Identify each actual lexical meaning before labeling the verbal resemblance.
Ḥīna gives the temporal setting, and ilā al-karā depicts movement toward rest. Phonetic echoes reinforce the narrative transition. Calling it merely rhyme misses its semantic organisation.