وَلَلْآخِرَةُ خَيْرٌ لَكَ مِنَ الْأُولَىٰ
And the Hereafter is surely better for you than the first life. (الضحى: 4)
The lām before al-ākhira contributes emphasis. Al-ākhira is the subject, khayrun the predicate; laka highlights the addressee’s benefit, and mina al-ūlā defines the comparison. The assertion is comparative, not an unrestricted claim about every possible good in the present life.
Nominal predication with emphasis offers stable reassurance. It should not automatically be called formal qaṣr simply because a lām appears. An exclusive reading requires support from the intended comparison and discourse rather than an isolated particle.