(Purpose of the Heifer)
You had killed a person, then disputed among yourselves. God was to expose what you tried to conceal.
وَإِذ قَتَلتُم نَفسًا فَادّٰرَءتُم فيها وَاللَّهُ مُخرِجٌ ما كُنتُم تَكتُمونَ
wa iz qataltum nafsan faddaara’tum feehaa wallaahu mukhrijum maa kuntum taktumoon