וַֽיְהִ֖י מִקֵּ֣ץ יָמִ֑ים וַיָּבֵ֨א קַ֜יִן מִפְּרִ֧י הָֽאֲדָמָ֛ה מִנְחָ֖ה לַֽיהוָֽה׃
און עס איז געװען נאָך אַ פֿאַרלױף פֿון טעג, האָט קַיִן געבראַכט פֿון דער פֿרוכט פֿון דער ערד אַ קרבן צו גאָט.
The Midrash of Philo
Why Cain after some days offers up the first-fruits of his fruits, but when it is said that "Abel offered up first-fruits of the first-born of his flock and of the fat," "after some days" is not added? (Genesis 4:3-4).
On the Birth of Abel and the Sacrifices Offered by him and by his Brother Cain
[52] “And it came to pass after some days that Cain brought of the fruits of the earth as an offering to God” (Gen. 4:3). There are two charges against the self-lover: one that he made his thank-offering to God “after some days,” instead of at once; the other that he offered of the fruits and not of the earliest fruits, or in a single word the first-fruits. Let us examine each of the charges, taking first that which is first in order.