TAD A2.1 R.9 :וכעת אן אשכחת אש מהימן‏ : now then if you have found a reliable person
See the entire entry for ˀen, ˀin, hin conj. if

TAD A2.1 R.9 :אן אשכחת אש מהימן‏ : if you find a reliable person
See the entire entry for škḥ vb. to find; to be capable