«وَلَا شَرَعْتُ لِي عَلَى مَوْرِدٍ»
I did not go to such a source of gain. The next words describe an avaricious presence that might stain one’s honor.
Mawrid originally means a watering place, then a source of benefit. ʿIrḍ is honor or reputation; yudannisu means to stain; ḥarīṣ means eager or covetous.
He defends his reputation despite admitting strategic ways of gaining support. The tension between the claim of honor and the tactics he describes is part of the literary interest.