﴿ قِيلَ ٱدْخُلِ ٱلْجَنَّةَ ۖ قَالَ يَٰلَيْتَ قَوْمِى يَعْلَمُونَ ﴾

“[And] he was told, “[Thou shalt] enter paradise!” - [whereupon] he exclaimed: “Would that my people knew”

It was said to him upon his death ‘Enter Paradise!’ — but it is also said that he entered it while he was still alive. He said ‘O yā is for calling attention to something would that my people knew