score:2
The next line says,
On another occasion the Buddha came all the way from Jetavana to ΔlavΔ« for the sake of a weaver's daughter. (For the story see DhA.iii.170f).
The story of the Weaver's daughter is on Access to Insight on a page titled:
So the "DhA" may be that, i.e. not the Dhammapada but rather Buddhaghosa's commentary.
"DhA.iii" is presumably Part 3 of 4 -- but different publishers or translators have different ways to number volumes, but anyway, I assume it's from that commentary:
In the fifth century the great Pali scholar-monk Buddhaghosa wrote an extensive commentary to the much-beloved Dhammapada. His commentary provides background stories that set the stage for each brief verse, giving them an expansive context that greatly enriches their meaning. The present booklet is the second in a four-part anthology.
This comment indicates it's the story to accompany verse 203.