Translation:
18. Nay verily the Record of the Righteous is (preserved) in `Illiyin.
Notes (Tafseer)
6019. 'Illiyin: the oblique form of the nominative Illiyun, which occurs in the next verse. It is in contrast to the Sijjin which occurs in verse 7 above, where see n. 6213. Literally, it means the 'High Places'. Applying the reasoning parallel to that which we applied to Sijjin, we may interpret it as the Place where is kept the Register of the Righteous.