וַיֹּֽאמְרוּ֙ אֶל־מֹשֶׁ֔ה עֲבָדֶ֣יךָ נָֽשְׂא֗וּ אֶת־רֹ֛אשׁ אַנְשֵׁ֥י הַמִּלְחָמָ֖ה אֲשֶׁ֣ר בְּיָדֵ֑נוּ וְלֹא־נִפְקַ֥ד מִמֶּ֖נּוּ אִֽישׁ׃
and they said unto Moses: ‘Thy servants have taken the sum of the men of war that are under our charge, and there lacketh not one man of us.
Read kabbalistic (mystical) interpretation of Numbers 31:49: and classical mystical sources.