لاdo not تَعْجَبواmarvel (you, plural) منat حَرامِforbidden وَصلٍunion
لا تَعْجَبوا من حَرامِ وَصلٍ
غادَرتُهI left him بالعَفافِthrough chastity خِلاَّan intimate friend
غادَرتُه بالعَفافِ خِلاَّ
Do not marvel at one whose embrace is forbidden,
Do not be amazed at the unlawful union I abandoned
Whom, through chastity, I left as an intimate friend.
I left it for chastity and purity
خمرْwine غَراميmy passion استحالَturned into خلاًvinegar
خمرْ غَرامي استحالَ خلاً
فَصارَand so it became عندَat الوصالِthe union حِلاlawful
فَصارَ عندَ الوصالِ حِلا
The wine of my passion turned to vinegar,
The wine of my love turned to vinegar
And so became lawful at the time of union.
So at the union it became lawful