فَلْيَضْحَكُوا قَلِيلًا وَلْيَبْكُوا كَثِيرًا
Let them laugh a little and weep much.
The first group presents laughter and little; the second presents their counterparts, weeping and much.
Correspondence:
Laugh ↔ weep — opposed actions.
Little ↔ much — opposed degrees.
Because two relations are arranged in matching order, this is two-by-two muqābalah, not merely a lone pair of contrary words.