As he passed by (paragōn). Present active participle of paragō, old verb to go along, by, or past (Mat 20:30). Only example in this Gospel, but in 1Jo 2:8, 1Jo 2:17. The day was after the stirring scenes in chapter 8, but not at the feast of dedication as Westcott argues. That comes three months later (Joh 10:22).
From his birth (ek genetēs). Ablative case with ek of old word from genō, ginomai. Here alone in N.T., but the phrase tuphlos ek genetēs is common in Greek writers. Probably a well-known character with his stand as a beggar (Joh 9:5).