[8:2] 2 sn Susa (Heb. שׁוּשַׁן, shushan), located some 230 miles (380 km) east of Babylon, was a winter residence for Persian kings during the Achaemenid period. The language of v. 2 seems to suggest that Daniel may not have been physically present at Susa, but only saw himself there in the vision. However, the Hebrew is difficult, and some have concluded that the first four words of v. 2 in the MT are a later addition (cf. Theodotion).
[8:2] 3 tn The Hebrew word בִּירָה (birah, “castle, palace”) usually refers to a fortified structure within a city, but here it is in apposition to the city name Susa and therefore has a broader reference to the entire city (against this view, however, see BDB 108 s.v. 2). Cf. NAB “the fortress of Susa”; TEV “the walled city of Susa.”
[8:2] 4 tn The term אוּבַל (’uval = “stream, river”) is a relatively rare word in biblical Hebrew, found only here and in vv. 3 and 6. The Ulai was apparently a sizable artificial canal in Susa (cf. NASB, NIV, NCV), and not a river in the ordinary sense of that word.