4:109 Here you are arguing on their behalf in this world, but who will argue on their behalf with God on the day of Resurrection? Or who will be their sponsor?
Edip-Layth (Quran: A Reformist Translation)
Dictionaries
Ejtaal Arabic Almanac: Lane's Lexicon, Hans Wehr, Lisan al-Arab and others
But We shall set up just balance-scales on Resurrection Day, and no human being shall be wronged in the least: for though there be [in him but] the weight of a mustard-seed [of good or evil], We shall bring it forth; and none can take count as We do!
O my dear son," [continued Luqman,] verily, if there be but the weight of a mustard-seed, and though it be [hidden] in a rock, or in the skies, or in the earth, God will bring it to light: for, behold, God is unfathomable [in His wisdom], all-aware*