Following are a number of back-translations as well as a sample translation for translators of Leviticus 10:6:

• Kupsabiny: “Then Moses said to Aaron and his sons Eleazar and Ithamar, "Do not let your hair be shabby/unkept like that of people who are mourning and do not tear your clothes to show that you are mourning. If you do that, you shall die and God will be angry towards the whole community. But the other people of Israel are able to mourn those people that God destroyed by sending that fire.” (Source: Kupsabiny Back Translation)
• Newari: “Then Moses said to Aaron and his sons Eleazar and Ithamar — "Never let your hair stand in disarray and don’t tear your clothing. Otherwise, you will die, and the LORD will become angry with all the people. Your relatives among the people of Israel, however, may weep for the ones who died from the fire of the LORD.” (Source: Newari Back Translation)
• Hiligaynon: “Then Moises said to Aaron and his children who (were) Eleazar and Itamar, ‘[You (plur.)] do- not -let- your (plur.) hair -be-uncombed/unkempt or tear your clothes/garments to show that you (plur.) are mourning the dead. If you (plur.) do this, you (plur.) will-die and the LORD will-be-angry with the whole of Israel. The whole people/community of Israel who (are) your (plur.) blood-relatives (are) the-(ones-who) will-mourn for the two of them whom the LORD burnt.” (Source: Hiligaynon Back Translation)
• English: “Then Moses/I said to Aaron and his other two sons Eleazar and Ithamar, ‘You are sad because Nadab and Abihu died, but you must act like you always do. Do not allow the hair on your heads to remain uncombed, and do not tear your clothes. But your relatives and all your fellow Israelis are allowed to mourn for those whom Yahweh destroyed by fire.” (Source: Translation for Translators)