OS MtCur23:21 :ܘܡܢ ܕܝܡܐ ܒܗܝܟܠܐ ܝܡܐ ܒܗ ܘܒܡܢ ܕܥܡܪ ܒܗ‏ : whoever swears by the temple, swears by it and by the one who dwells in it
See the entire entry for ymy vb. to swear