Numbers 26:61 Halakhah

וַיָּ֥מָת נָדָ֖ב וַאֲבִיה֑וּא בְּהַקְרִיבָ֥ם אֵשׁ־זָרָ֖ה לִפְנֵ֥י יְהוָֽה׃

And Nadab and Abihu died, when they offered strange fire before the LORD.

Read halakhic rulings (Jewish law) on Numbers 26:61: and classical halakhic sources.