EphFid 18:1.2 :ܝܠܕܗ݀ ܕܦܪܚܬܐ ܐܢ ܗܘ ܕܠܐ ܐܫܬܠܡ ܠܐ ܡܨܐ ܨܪܐ ܬܚܦܝܬܗ ܒܚܣܝܪܘܬܗ‏ : if a bird's chick has not become complete it is unable to break through its covering because of its lack
See the entire entry for ṣry vb. to split s.t. and penetrate