Targum for Genesis 4:2
וַתֹּ֣סֶף לָלֶ֔דֶת אֶת־אָחִ֖יו אֶת־הָ֑בֶל וַֽיְהִי־הֶ֙בֶל֙ רֹ֣עֵה צֹ֔אן וְקַ֕יִן הָיָ֖ה עֹבֵ֥ד אֲדָמָֽה׃
And again she bore his brother Abel. And Abel was a keeper of sheep, but Cain was a tiller of the ground.
Targum Jonathan on Genesis
And she added to bear from her husband Adam his twin, even Habel. And Habel was a shepherd of the flock, but Kain was a man working in the earth.
Ask RabbiBookmarkShareCopy