Cite the scanned version of the original dicionary like this:
Toller, T. Northcote, and Joseph Bosworth. "hǽlnes." An Anglo-Saxon Dictionary: Based on the Manuscript Collections of the Late Joseph Bosworth : Supplement. Oxford: Clarendon Press, 1921. 497.
, se; f.I.haleness, salvation :-- Nú sint hǽlnesse dagas now are the days of salvation, Past. 36, 1; Swt. 246, 14. II.a sanctuary :-- On circan and on hǽlnessan in churches and sanctuaries, L Eth. 7, 25; Th. i. 334, 26. v. hálignes.