وَفَكَكْنَا غُلَّ امْرِئِ الْقَيْسِ عَنْهُ بَعْدَ مَا طَالَ حَبْسُهُ وَالْعَنَاءُ
Meaning: We removed Imruʾ al-Qays’s fetter after his confinement and suffering had lasted a long time.
Fakaknā is first-person plural past from f-k-k, “we loosened or freed.” Ghulla is the shackle, the direct object, while ṭāla marks the duration of confinement and distress.
The collective we claims a tribal service. A shared name alone is not enough to identify this Imruʾ al-Qays with the poet of the first Muʿallaqah; the identification should not be imposed without evidence from this source.