IshJer 14:12 : ܠܘ ܟܕ ܡܬܥܕܠܝܢ ܒܐܠܗܐ ܘܒܪܚܡܢܘܬܗ‏ : not while reproaching God and His mercifulness
See the entire entry for raḥmānū, raḥmānūṯā n.f. mercy